Thursday, June 26, 2008

DRUGS--E & F

Echothiophate Iodide

Trade Name(s): Phospholine Iodide

Chemically Related To: Irreversible cholinesterase inhibitors

Pregnancy Category: C

Medical Category: Antiglaucoma agent, cyclostimulant, diagnostic aid

Accepted Indications: Glaucoma, esotropia (diagnosis and treatment)

Mechanism of Action: Cholinesterase inhibitor

Peak activity: Miosis: 2 h

Research Notes: Onset of miosis: less than 1 h; duration of miosis: up to 1 m

Adult Dosage: Antiglaucoma: to conjunctiva, 1 drop of 0.03%–{endash}0.25% solution 1–{endash}2 times daily

Elderly Dosage: Decreased concentration

Child Dosage: 2 y and over: same as adult dosage

Dosage Forms: For ophthalmic solution: 0.03%, 0.06%, 0.125%, and 0.25%

By System: Ocular

Warnings: For the eye only–{endash}decreases night vision

Precautions: Carry medical identification

Frequent Side Effects: Frequencies not given for stinging of eyes, headache, miosis

Rare Side Effects: Retinal detachment

Overdosage: Bradycardia, bronchospasm, hypotension, increased sweating, nausea/vomiting, diarrhea

Antidotal Therapy: May include atropine sulfate injection, IV pralidoxime CL, diazepam

Disease States: Glaucoma, peptic ulcer, myasthenia gravis, epilepsy, bronchial asthma, Down syndrome, hypertension

Other Drugs: Cholinesterase inhibitors, cocaine, succinylcholine, ophthalmic belladonna alkaloids, anticholinergics

Administrative Notes: Reconstituted solution is stable for 3–{endash}4 w at room temperature

Econazole Nitrate

Trade Name(s): Spectazole

Chemically Related To: Miconazole

Pregnancy Category: C

Medical Category: Topical antifungal

Accepted Indications: Cutaneous candidiasis, tinea corporis, tinea cruris, tinea pedis, tinea versicolor, paronychia, tinea barbae, tinea capitis

Mechanism of Action: Fungistatic

Absorption/Distribution: Minimal systemic absorption

Elimination: Renal, fecal

Adult Dosage: Topical, b.i.d., morning and evening

Elderly Dosage: Same as adult dose

Child Dosage: Same as adult dose

Infant Dosage: Same as adult dose

Dosage Forms: Cream: 1%

Warnings: Avoid tight-fitting underwear for tinea cruris

Precautions: Follow for full course

Occasional Side Effects: Hypersensitivity

Edetate Calcium Disodium

Trade Name(s): Calcium Disodium Verserate

Pregnancy Category: B

Medical Category: Chelating agent, diagnostic aid, lead mobilization

Accepted Indications: Lead toxicity

Unaccepted Indications: Arsenic, gold, or mercury poisoning; prevention or retardation of atherosclerosis

Mechanism of Action: Reduces lead stores

Absorption/Distribution: Well absorbed after parenteral administration

Half life: IV: 20–{endash}60 min. IM: 1.5 h.

Metabolism: Not metabolized

Elimination: Renal

Adult Dosage: 30–{endash}50 mg/kg/d in 2 divided doses; 2 g/d maximum

Child Dosage: IV or IM: 1500 mg/m2/d, administered on 4 h schedule for 5 d

Dosage Forms: Injection: 200 mg/mL

Frequent Side Effects: Systemic febrile reaction, histamine-like reaction, nausea, vomiting, hypotension, renal damage, thrombophlebitis

Occasional Side Effects: Transient anemia, bone marrow depression, dermatitis, hypercalcemia

Rare Side Effects: Secondary gout, frequent urge to urinate

Contraindications: Anuria, oliguria

Disease States: Dehydration, hypercalcemia, renal function impairment

Other Drugs: Insulin, zinc supplements

Lab Tests: BUN, calcium concentrations

Edrophonium Chloride

Trade Name(s): Enlon, Reversol, Tensilon

Pregnancy Category: C

Medical Category: Cholinergic, diagnostic aid, antidote

Accepted Indications: Myasthenia gravis diagnosis, nondepolarizing neuromuscular blockade, curare toxicity

Unaccepted Indications: Supraventricular tachycardia

Mechanism of Action: Inhibits destruction of acetylcholine

Half life: 7–{endash}12 min (distribution), 33–{endash}110 min (elimination)

Elimination: Renal

Adult Dosage: IV, 1–{endash}10 mg; IM, 10 mg as diagnostic aid

Elderly Dosage: Same as adult dose

Child Dosage: Under 34 kg: IM, 2 mg; IV, 1 mg initially, may be repeated to a total dose of 5 mg. 34 kg and over: IM, 5 mg; IV, 2 mg initially, may be repeated to a total dose of 10 mg.

Infant Dosage: IM or SQ: 50 m{mu}g–{endash}1 mg. IV: 500 m{mu}g.

Dosage Forms: Injection: 10 mg/mL

Warnings: Protect from freezing

Occasional Side Effects: Muscarinic effects (blurred vision, diarrhea, sweating, bronchial secretion)

Rare Side Effects: Nicotinic effects (weakness, cramps, twitching)

Contraindications: Asthma, intestinal obstruction

Antidotal Therapy: May include atropine sulfate, 0.4–{endash}0.5 mg

Disease States: AV block

Other Drugs: Cholinesterase inhibitors, digitalis glycosides, neuromuscular blocking agents

Enalapril Maleate

Trade Name(s): Vasotec

Chemically Related To: Captopril

Pregnancy Category: C (D 2nd and 3rd trimesters)

Medical Category: Antihypertensive

Accepted Indications: Hypertension, CHF

Mechanism of Action: Blocks ACE producing vasodilation

Absorption/Distribution: Partially absorbed

Half life: 11 h

Peak activity: 1 h

PO: 1 h

Metabolism: Hepatic

Elimination: Renal and fecal

Adult Dosage: 5–{endash}40 mg/d

Elderly Dosage: Based on clinical response

Child Dosage: Not recommended

Infant Dosage: Not recommended

Dosage Forms: Tablets: 5 mg, 10 mg, and 20 mg

By System: ACE inhibitor; vascular

Warnings: Proteinuria and neutropenia may occur

Precautions: Dizziness and lightheadedness may occur after first dose

Occasional Side Effects: Dizziness, lightheadedness, fainting, cough

Rare Side Effects: Chest pain, sudden trouble in swallowing or breathing, swelling, (angioedema), hyperkalemia

Overdosage: Dizziness, syncope

Antidotal Therapy: May include supportive measures

Disease States: Autoimmune disease; bone marrow depression; diabetes; renal function impairment

Other Drugs: Alcohol, diuretics, NSAIDs, estrogens, sympathomimetics

Lab Tests: BUN, serum potassium and sodium ion concentration

Enalapril/Hydrochlorothiazide

Trade Name(s): Vaseretic

Pregnancy Category: C (D 2nd and 3rd trimesters)

Medical Category: Antihypertensive

Accepted Indications: Hypertension

Mechanism of Action: Reduces peripheral arterial resistance by decreasing the rate of production for angiotensin II

Absorption/Distribution: Approximately 60% absorption for enalapril

Half life: 11 h

Peak activity: 4-6 h

Metabolism: Hepatic

Elimination: Renal 60% and 33% fecal

Adult Dosage: 1 tablet/d

Elderly Dosage: See adult

Child Dosage: 100 m{mu}g/kg/d to a max of 500 m{mu}g/kg/d (enalapril); 1-2 mg/kg or 30-60 mg/sq meter/d

Dosage Forms: Tablets: 10 mg/25 mg

By System: CNS

Frequent Side Effects: Dry cough

Occasional Side Effects: Hypotension, diarrhea, increased sensitivity to light, loss of taste, unusual tiredness, nausea

Rare Side Effects: Angioedema, chest pain, cholecystitis, pancreatitis, hepatic function impairment, hyperuricemia, gout, neutropenia, agranulocytosis, thrombocytopenia

Overdosage: Dryness of mouth, irregular heartbeat, weak pulse

Disease States: Angioedema, anuria, hyperkalemia, renal artery stenosis, renal transplant, renal function impairment

Other Drugs: Adrenocorticoids, ACTH, alcohol, diuretics, potassium containing medications or supplements, salt substitutes, digitalis glycosides, lithium, methenamine, sympathomimetics, norepinephrine, phenylephrine

Lab Tests: Serum calcium, sodium, potassium, uric acid or cholesterol

Administrative Notes: Avoid too much sun or use of sunlamp

Enalaprilat

Trade Name(s): Vasotec-IV

Pregnancy Category: C (D second and third trimesters)

Medical Category: Antihypertensive, vasodilator

Accepted Indications: Hypertension, CHF

Mechanism of Action: Inhibits ACE

Half life: 11 h

IV: 1–{endash}4 h

Elimination: Renal

Adult Dosage: IV (over a period of 5 min) 1.25 mg/6 h

Elderly Dosage: Same as adult dose

Child Dosage: Safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Injection: 1.25 mg

By System: Cardiovascular, respiratory

Warnings: May cause dizziness; prevent dehydration

Frequent Side Effects: Dry cough, headache

Occasional Side Effects: Diarrhea, fatigue, nausea, hypotension, rash, fever, pain in joints

Rare Side Effects: Angioedema of extremities, chest pain, hyperkalemia, pancreatitis, neutropenia

Antidotal Therapy: May include volume expansion; hemodialysis for removal

Disease States: Angioedema, autoimmune disease, bone marrow depression, diabetes mellitus, kidney problems

Other Drugs: Alcohol, diuretics, NSAIDs, potassium supplements, bone marrow depressants, estrogens, lithium, sympathomimetics

Lab Tests: Iodohippurate sodium I 123 or 131, BUN, hematocrit, hemoglobin, serum potassium and sodium, serum creatinine

Enoxacin

Trade Name(s): Penetrex

Chemically Related To: Fluoroquinolone

Pregnancy Category: C

Medical Category: Anti-infective

Accepted Indications: Mild to moderately severe urinary tract infections, gonorrhea

Unaccepted Indications: Syphilis

Absorption/Distribution: 90% bioavailability

Half life: 3–{endash}6 h

PO: 1–{endash}3 h

Metabolism: Hepatic

Elimination: Renal

Research Notes: 5 metabolites have been identified

Adult Dosage: 200 mg b.i.d. for 5 d

Elderly Dosage: Usually normal dose

Child Dosage: Not recommended

Infant Dosage: Not recommended

Dosage Forms: Film-coated tablets: 200 mg and 400 mg

Warnings: May cause dizziness

Precautions: Avoid sunlight; drink plenty of fluids

Occasional Side Effects: Nausea and vomiting, dizziness

Rare Side Effects: Headache, rash, diarrhea, dyspepsia

Contraindications: Pregnancy

Antidotal Therapy: May include supportive treatment: gastric lavage, emesis

Disease States: Epilepsy, cerebral arteriosclerosis

Other Drugs: Antacids, NSAIDs, theophylline, caffeine, bismuth, cyclosporine, digoxin, warfarin

Lab Tests: Hemoglobin, hematocrit, bilirubin, urinary protein

Administrative Notes: Dosage should be adjusted in patients with a creatinine clearance value of 30 mL/min/1.73 m2 or less

Enoxaparin

Trade Name(s): Lovenox

Pregnancy Category: B

Medical Category: Antithrombotic

Accepted Indications: Pulmonary thromboembolism, deep venous thrombosis prophylaxis after hip surgery

Mechanism of Action: Increased antithrombin III-mediated inhibition of the formation and activity of factor XA

Absorption/Distribution: Absorbed rapidly and almost completely

Half life: 3–{endash}6 h (elimination)

Peak activity: 3–{endash}5 h (SQ)

Metabolism: Hepatic

Elimination: Renal

Research Notes: Duration of action up to 24 h

Adult Dosage: SQ: 30 mg b.i.d. for 7–{endash}10 d

Elderly Dosage: Same as adult dose

Child Dosage: Not established

Infant Dosage: Not established

Dosage Forms: Injection: 30 mg/0.3 mL

By System: Vascular

Occasional Side Effects: Bleeding complications, confusion, fever, peripheral edema, thrombocytopenia, increased menstrual bleeding, irritation at injection site, nausea, vomiting

Rare Side Effects: Angioedema, cardiovascular toxicity, rash, hives

Overdosage: Bleeding complications

Antidotal Therapy: May include protamine sulfate

Disease States: Threatened abortion, aneurysm, cerebrovascular hemorrhage, uncontrollable hemorrhage, hypertension, thrombocytopenia, regional or lumbar block anesthesia, blood dyscrasias, recent childbirth, endocarditis, neurosurgery, ophthalmic surgery, pericarditis, renal function impairment, retinopathy, spinal puncture, severe trauma, ulcerations or lesions, vasculitis, wounds with large open surfaces

Other Drugs: Platelet aggregation inhibitors, aspirin, sulfinpyrazone, ticlopidine, plicamycin, valproic acid, thrombolytics, alteplase, anistreplase, streptokinase, urokinase

Lab Tests: Blood coagulation, platelet aggregation, platelet count

Ephedrine Hydrochloride/Guaifenesin

Trade Name(s): Broncholate (Capsules, Syrup)

Medical Category: Antitussive, Mucolytic

Accepted Indications: Cough and cold

Adult Dosage: Capsules: 1–{endash}2 capsules every 4 h; syrup: 10–{endash}20 mL every 4 h

Child Dosage: Syrup: 2–{endash}6 y: 2.5–{endash}5 mL; 6–{endash}12 y: 5–{endash}10 mL every 4 h

Dosage Forms: Capsules: 12.5 mg/200 mg; syrup: 6.25 mg/100 mg

Ephedrine Hydrochloride/Guaifenesin/Phenobarbital/Theophylline

Trade Name(s): Bronkolixir, Bronkotabs, Guaiphed, Mudrane GG

Pregnancy Category: C

Medical Category: Bronchodilator, mucolytic

Accepted Indications: Asthma

Adult Dosage: Varies by strength

Elderly Dosage: Varies by strength

Child Dosage: Varies by strength

Dosage Forms: Varies by preparation

Ephedrine Hydrochloride/Phenobarbital/Theophylline Anhydrous

Trade Name(s): Tedrigen, Theodrine, Theofedral, Theophedrital

Pregnancy Category: C

Medical Category: Antiasthmatic, bronchodilator

Accepted Indications: Asthma

Dosage Forms: Varies by preparation

Ephedrine Hydrochloride/Potassium Iodide

Trade Name(s): KIE

Pregnancy Category: C

Medical Category: Bronchodilator, expectorant

Accepted Indications: Asthma

Adult Dosage: 10–{endash}15 mL every 4–{endash}6 h

Child Dosage: 3–{endash}6 y: 2.5–{endash}5 mL; 6–{endash}12 y: 5–{endash}10 mL every 4–{endash}6 h

Dosage Forms: Syrup: 8 mg/150 mg

Ephedrine Hydrochloride/Potassium Iodide/Phenobarbital/Theophylline Salicylate

Trade Name(s): Quadrinal

Pregnancy Category: C

Medical Category: Antiasthmatic, mucolytic

Accepted Indications: Asthma, bronchodilator

Dosage Forms: Tablet: 24 mg/320 mg/24 mg/130 mg

Ephedrine Sulfate

Trade Name(s): Generic only

Chemically Related To: Amphetamine

Pregnancy Category: C

Medical Category: Bronchodilator, nasal decongestant, CNS stimulant, urticaria therapy adjunct

Accepted Indications: Asthma, bronchitis, bronchospasm, bronchiectasis, emphysema, nasal congestion, sinus congestion, mental depression, narcolepsy, urticaria

Unaccepted Indications: Enuresis, myasthenia gravis

Mechanism of Action: Relaxes bronchial smooth muscle

Absorption/Distribution: Rapidly absorbed

Half life: 3-6 h

Metabolism: Hepatic

Elimination: Mostly excreted unchanged in the urine

Research Notes: Oral onset of action 15-60 min, IM onset of action 10-20 min, oral duration of action 3-5 h, IM duration of action 0.5-1 h

Adult Dosage: Capsules: 25-50 mg q 3 h; IV, IM or SQ: 12.5-25 mg, up to 150 mg/d

Elderly Dosage: Use with caution

Child Dosage: Capsules or injection: 3 mg/kg/d in 4-6 divided doses

Infant Dosage: Use with caution

Dosage Forms: Capsules: 25 and 50 mg; syrup: 20 mg/5 mL; injection: 25 mg/mL and 50 mg/mL

Frequent Side Effects: Trouble sleeping, nervousness, restlessness

Occasional Side Effects: Difficult urination, dizziness, dry mouth, fast heartbeat, headache, increased sweating, increase in blood pressure, loss of appetite, nausea, pounding heartbeat, trembling, unusual paleness, vomiting, weakness

Rare Side Effects: Chest pain, irregular heartbeat, hallucinations, mood changes, paradoxical bronchospasm, chills, convulsions, blurred vision, unusual weakness

Contraindications: Cardiovascular disease, angle-closure glaucoma, prostatic hypertrophy

Antidotal Therapy: May include IV fluids, diazepam

Disease States: Diabetes mellitus, hyperthyroidism, pheochromocytoma, prostatic hypertrophy

Other Drugs: Levodopa, nitrates, doxapram, glucocorticoid adrenocorticoids, corticotropin, urinary alkalizers, alpha-adrenergic beta blockers, diatrizoates, iothalamate, ioxaglate, ergot alkaloids, methysergide, oxytocin, guanadrel, guanethidine, mazindol, mecamylamine, methyldopa, trimethaphan, methylphenidate, rauwolfia alkaloids, rapidly acting vasodilators, hydrocarbon inhalation anesthetics, antihypertensives, CNS stimulation–{endash}producing medications, cocaine, digitalis glycosides, dihydroergotamine, ergotamine, MAO inhibitors, ritodrine, sympathomimetics, thyroid hormones, xanthines

Ephedrine Sulfate/Hydroxyzine Hydrochloride/Theophylline

Trade Name(s): Ami-Rax, Hydrophed, Marax, T.E.H., Theomax DF, Therax

Pregnancy Category: C

Medical Category: Antiasthmatic, antianxiety

Accepted Indications: Asthma, bronchodilator

Dosage Forms: Syrup: 6.25 mg/2.5 mg/32.5 mg; tablet: 25 mg/10 mg/130 mg

Epinephryl Borate

Trade Name(s): Epinal

Chemically Related To: Epinephrine

Pregnancy Category: C

Medical Category: Antiglaucoma agent, surgical aid

Accepted Indications: Glaucoma

Mechanism of Action: Decrease in production of aqueous humor

Absorption/Distribution: Limited absorption

Peak activity: 4–{endash}8 h

Research Notes: Duration of action in reducing intraocular pressure: up to 24 h

Adult Dosage: Topical to conjunctiva, 1 drop once daily or b.i.d.

Child Dosage: Safety not established

Infant Dosage: Safety not established

Dosage Forms: Ophthalmic solution: USP 0.5%, 1%, and 2%

By System: Ocular

Warnings: Avoid contamination of applicator; do not use solution if discolored

Precautions: Check eye pressure regularly

Frequent Side Effects: Headache; stinging or watering of eyes

Occasional Side Effects: Blurred vision, eye pain

Rare Side Effects: Tachycardia

Antidotal Therapy: May include symptomatic treatment such as a beta-adrenergic blocker

Disease States: Bronchial asthma, heart problems, diabetes mellitus, glaucoma, hypertension, hyperthyroidism

Other Drugs: Hydrocarbon anesthetics, tricyclic antidepressants, digitalis glycosides, MAO inhibitors, systemic sympathomimetics

Administrative Notes: Do not use unless solution is colorless or amber-colored; Do not use if there is a precipitate

Epoetin Alfa

Trade Name(s): Epogen, Procrit

Chemically Related To: Human erythropoietin

Pregnancy Category: C

Medical Category: Antianemic

Accepted Indications: Anemia associated with renal failure, anemia associated with AIDS, anemia associated with frequent blood donation

Unaccepted Indications: Blood transfusion substitute

Mechanism of Action: Stimulates division and differentiation of erythroid progenitor cells

Absorption/Distribution: Destroyed in GI tract; delayed and incomplete absorption

Half life: 4–{endash}13 h

Peak activity: SQ 5–{endash}24 h

IV: 15 min

Metabolism: Hepatic

Elimination: Renal

Research Notes: Increase in red blood cell count in 2–{endash}6 w

Adult Dosage: Initial dose: IV or SQ, 50–{endash}100 units/kg 3 times/w

Dosage Forms: Recombinant injection 2000 units/mL, 3000 units/mL, 4000 units/mL, and 10,000 units/mL

By System: Hematopoietic

Warnings: Discard unused portions; do not shake vial

Precautions: Take iron supplements

Frequent Side Effects: Chest pain, tachycardia, hypertension, swelling of face and extremities, weight gain, diarrhea, nausea/vomiting, shortness of breath

Occasional Side Effects: Seizures

Rare Side Effects: Rash, hives

Contraindications: Hypersensitivity to human albumin; uncontrolled hypertension

Antidotal Therapy: For clotting, follow dialysis center policy; also administer antihypertensives

Disease States: Hypertension, vascular disease, convulsions, vitamin B12 deficiency, infection

Nutrition: Special diet often needed; possible need for iron supplements

Other Drugs: Heparin, antihypertensives

Lab Tests: Iron concentration, blood pressure, BUN, bleeding time, serum uric acid concentration

Administrative Notes: Do not administer with other medications

Ergocalciferol

Trade Name(s): Calciferol, Deltalin, Drisdol, Ostoforte

Chemically Related To: Vitamin D

Pregnancy Category: C

Medical Category: Antihypocalcemic, nutritional supplement, antihypoparathyroid

Accepted Indications: Hypocalcemia, rickets, tetany, hypophosphatemia, osteodystrophy, vitamin D deficiency

Unaccepted Indications: Lupus vulgaris, psoriasis, rheumatoid arthritis

Mechanism of Action: Promotes absorption and utilization of calcium and phosphate

Absorption/Distribution: Readily absorbed from small intestine

Half life: 19–{endash}48 h

Metabolism: Hepatic, renal

Elimination: Biliary, renal

Adult Dosage: PO: varies by indication. Usual dose 400–{endash}2000 units/d; up to 500,000 units/d; injection: 10,000 units/d

Elderly Dosage: May require higher dose

Child Dosage: PO: varies by indication. Usual dose 400–{endash}2000 units/d; up to 200,000 units/d; injection: same as adult dose

Infant Dosage: Must be individualized

Dosage Forms: Capsules: 50,000 units; tablets: 50,000 units; oral solution: 8,000 units; injection: 500,000 units. Lower dose units available in over the counter preparations

Contraindications: Hypercalcemia, cardiac impairment

Overdosage: Constipation, headache, metallic taste, bone pain, diarrhea, dry mouth, increased thirst, frequent urination, appetite loss, nausea, vomiting, cloudy urine, high blood pressure, irregular heartbeat, pancreatitis, itching

Antidotal Therapy: May include withdrawal of vitamin, low-calcium diet, increased fluid intake, prednisone

Disease States: Hypervitaminosis D, renal osteodystrophy with hyperphosphatemia, arteriosclerosis, hyperphosphatemia, renal function impairment

Other Drugs: Antacids, thiazide diuretics, colestipol, calcium–{endash}containing preparations, vitamin D analogs

Lab Tests: BUN, serum creatinine

Ergoloid Mesylates

Trade Name(s): Gerimal, Hydergine, Hydergine LC

Chemically Related To: Ergot alkaloids; natural alkaloid

Pregnancy Category: X

Medical Category: Dementia symptoms treatment adjunct

Accepted Indications: Early dementia, efficacy debatable

Mechanism of Action: Decreases vascular tone; blocks peripheral alpha receptors

Absorption/Distribution: Rapidly but incompletely absorbed

Half life: 2–{endash}5 h

PO: 1–{endash}2 h

Metabolism: Hepatic

Research Notes: Onset of action: may take 3–{endash}4 w

Adult Dosage: 1–{endash}2 mg t.i.d.

Dosage Forms: Capsules: 1 mg; oral solution: 1 mg/mL; tablets: 0.5 mg, 1 mg; sublingual tablets: 0.5 mg, 1 mg

By System: Vascular

Warnings: Do not use more or less than prescribed dose

Precautions: Monitor blood pressure and pulse

Occasional Side Effects: Bradycardia, orthostatic hypotension, rash

Overdosage: Blurred vision, dizziness, fainting, flushing, headache, nausea/vomiting, nasal congestion

Disease States: Bradycardia, liver function disorders, hypotension, psychosis

Ergonovine Maleate

Trade Name(s): Ergotrate

Chemically Related To: Ergotamine

Medical Category: Uterine stimulant, diagnostic aid (coronary vasospasm)

Accepted Indications: Uterine hemorrhage, postpartum and postabortal

Unaccepted Indications: Migraine, labor (induction), abortion (induction)

Mechanism of Action: Directly stimulates the uterine muscle to increase force and frequency of contraction; causes vasoconstriction of coronary arteries

Absorption/Distribution: Rapid and complete

PO: 60–{endash}90 min

Metabolism: Hepatic

Elimination: Renal

Research Notes: Antiemetic medications such as prochlorperazine may be administered before ergonovine

Adult Dosage: Uterine stimulant: Tablets: 200–{endash}400 m{mu}g b.i.d. to q.i.d.; IV or IM, 200 m{mu}g, repeated in 2–{endash}4 h, not to exceed 5 doses. Diagnostic aid: IV, 50 m{mu}g every 5 min not to exceed 400 m{mu}g

Dosage Forms: Tablets: 200 m{mu}g; IV and IM: 200 m{mu}g/mL and 250 m{mu}g/mL

By System: Uterine or smooth muscle

Frequent Side Effects: Nausea, uterine cramping

Occasional Side Effects: Bradycardia, coronary vasospasm, abdominal or stomach pain, diarrhea, dizziness, headache, nasal congestion, sweating

Rare Side Effects: Cardiac arrest or ventricular arrhythmias, including fibrillation and tachycardia

Contraindications: Unstable angina pectoris, recent myocardial infarction, history of cerebrovascular accident, transient ischemic attack, severe hypertension

Overdosage: Angina, bradycardia, confusion, drowsiness, weak pulse, miosis, severe peripheral vasoconstriction, depressed respiration, seizures, tachycardia

Antidotal Therapy: May include supportive and symptomatic treatment

Disease States: Cardiovascular disease, coronary artery disease, mitral valve stenosis, hepatic and renal function impairment, sepsis

Other Drugs: General anesthetics, antianginal agents, nitroglycerin, nicotine, vasoconstrictors, vasopressors

Administrative Notes: For patients who do not respond to ergonovine, calcium gluconate may restore the oxytocic action

Ergotamine Tartrate

Trade Name(s): Ergostat, Gynergen

Chemically Related To: Ergot alkaloid

Pregnancy Category: X

Medical Category: Vascular headache suppressant

Accepted Indications: Vascular headaches, cluster headaches

Unaccepted Indications: Migraine (long-term prophylaxis), production of oxytocic effect

Mechanism of Action: Adrenergic blocking; vasoconstriction

Absorption/Distribution: Slow and incomplete absorption

Half life: Alpha phase, 2 h; beta phase, 21 h

PO: 2 h

Metabolism: Hepatic

Elimination: Hepatic, fecal

Research Notes: Ergotamine is a semisynthetic alkaloid

Adult Dosage: 1–{endash}2 mg at start of attack, followed by 1 tablet at intervals of at least 30 min up to a total of 6 tablets/d

Child Dosage: Not established

Infant Dosage: Not established

Dosage Forms: Tablets: 1 mg; sublingual tablets: 2 mg

By System: Sympathetic nervous system

Warnings: May cause dizziness, avoid excessive cold, increased risk of hypothermia in elderly patients

Frequent Side Effects: Edema, CNS effects, dry mouth, GI distress

Occasional Side Effects: Cardiovascular problems, ocular changes

Contraindications: Vascular insufficiency, angioplasty, severe hypertension, vascular surgery

Overdosage: CNS toxicity, diarrhea, vomiting, respiratory depression

Antidotal Therapy: May include monitoring of vital signs; administration of oxygen, volume expanders, benzodiazepines

Disease States: Malnutrition, hyperthyroidism, hypertension, diarrhea, angina pectoris, liver problems, peripheral vascular disease

Other Drugs: Macrolide antibiotics, beta-adrenergic blockers, vasoconstrictors, nitroglycerin

Lab Tests: Gastric acid secretion

Administrative Notes: Recommended use not more than 2 times/w, 5 d apart

Erythrityl Tetranitrate

Trade Name(s): Generic only

Chemically Related To: Nitroglycerin

Pregnancy Category: C

Medical Category: Antianginal, vasodilator

Accepted Indications: Acute angina pectoris (prophylaxis), CHF

Mechanism of Action: Reduction of myocardial oxygen demand, attributed to a reduction in left ventricular preload and afterload

Absorption/Distribution: Readily absorbed

Metabolism: Hepatic, blood

Elimination: Renal

Research Notes: Duration of action, oral tablets: up to 6 h; sublingual tablets: 2–{endash}3 h. Onset of action, oral tablets: 15–{endash}30 min; sublingual tablets: 5 min.

Adult Dosage: 5–{endash}10 mg t.i.d. or q.i.d. up to 100 mg/d

Elderly Dosage: May be more sensitive to hypotensive effect

Child Dosage: Not established

Infant Dosage: Not established

Dosage Forms: Tablets: 10 mg

By System: Cardiovascular

Warnings: Caution with alcoholic use; keep container tightly closed, and store in a cool, dry place

Precautions: Buccal dosage not recommended at bedtime because of possibility of aspiration

Frequent Side Effects: Tachycardia, flushing of face and neck, headache, nausea and vomiting, orthostatic hypotension, restlessness

Occasional Side Effects: Sore, reddened skin

Rare Side Effects: Blurred vision, dry mouth, headache, severe or prolonged rash

Overdosage: Bluish lips, fingernails, or palms of hands; dizziness (extreme); fainting, feeling of extreme pressure in head; shortness of breath; extreme tiredness or weakness; weak pulse or tachycardia; fever; convulsions

Antidotal Therapy: May include removal of any remaining nitroglycerin; elevate legs to aid venous return; administer phenylephrine if necessary

Disease States: Severe anemia; recent head trauma; cerebral hemorrhage; recent myocardial infarction; severe hepatic and renal function impairment; hypotension; hyperthyroidism

Nutrition: Take with a glass of water on an empty stomach 1 h before or 2 h after meals

Other Drugs: Norepinephrine, antihypertensives, hypotensives, narcotic analgesics, other vasodilators, heparin, sympathomimetics

Lab Tests: Serum cholesterol, methemoglobin concentrations, urine catecholamine concentrations

Administrative Notes: Loss of drug potency is accelerated by exposure to heat and moisture. The tablets may be utilized for oral, sublingual, or buccal dosage. Take with a glass of water on an empty stomach 1 h before or 2 h after meals.

Erythromycin (Ophthalmic)

Trade Name(s): Ilotycin

Chemically Related To: Macrolide antibiotics

Pregnancy Category: B

Medical Category: Ophthalmic antibacterial

Accepted Indications: Conjunctivitis, ocular infections, ophthalmia neonatorum

Mechanism of Action: Interferes with messenger RNA

Absorption/Distribution: May be absorbed into the cornea and aqueous humor

Adult Dosage: Topical to the conjunctiva, 1 cm once daily

Elderly Dosage: Same as adult dose

Child Dosage: Same as adult dose

Infant Dosage: Neonatal conjunctivitis or ophthalmia neonatorum: topical to the conjunctiva, 0.5–{endash}1 cm as a single dose; ocular infections: same as adult dose

Dosage Forms: Ophthalmic ointment: 0.5%

Precautions: Protect from freezing

Frequent Side Effects: Blurred vision

Rare Side Effects: Eye irritation

Administrative Notes: Complete full course of treatment

Erythromycin Base

Trade Name(s): E-Mycin, ERYC, Ery-Tab

Chemically Related To: Erythromycin

Pregnancy Category: Use not recommended

Medical Category: Systemic antibacterial, antiacne agent, bowel preparative adjunct (preoperative)

Accepted Indications: Preoperative bowel preparation, conjunctivitis, chlamydial infections, pneumonia, diphtheria, bacterial endocarditis, gonorrhea, skin and soft tissue infections, bronchitis, acute otitis media, sinusitis, erythrasma, legionnaires' disease, listeriosis, pertussis, pharyngitis, rheumatic fever prophylaxis, syphilis, urethritis

Mechanism of Action: Inhibits bacterial protein synthesis

Absorption/Distribution: Well absorbed; widely distributed to most tissues and fluids

Half life: 1.4–{endash}2 h

PO: 1–{endash}4 h

Metabolism: Hepatic

Elimination: Hepatic, renal, fecal

Research Notes: Not removed by hemodialysis

Adult Dosage: 250 mg q.i.d. up to 4 g/d

Elderly Dosage: May require decreased dose

Child Dosage: 7.5-12.5 mg/kg q.i.d.

Infant Dosage: 7.5 to 12.5 mg/kg q.i.d.

Dosage Forms: Delayed-release capsules: 250 mg; tablets: 250 mg and 500 mg; delayed-release tablets: 250 mg, 333 mg, and 500 mg

Frequent Side Effects: GI upset

Occasional Side Effects: Hypersensitivity, oral candidiasis, hepatotoxicity, vaginal candidiasis

Rare Side Effects: Hearing loss, cardiac toxicity, pancreatitis

Antidotal Therapy: May include epinephrine, adrenocorticoids and antihistamines, gastric lavage

Disease States: Liver problems, cardiac arrhythmias, hearing loss

Other Drugs: Lincomycins, chloramphenicol, warfarin, xanthines, hepatotoxic medications, alfentanil, astemizole, terfenadine, midazolam, carbamazepine, valproic acid, cyclosporine

Lab Tests: Urinary catecholamines, alanine aminotransferase, alkaline phosphatase, aspartate aminotransferase

Administrative Notes: Delayed-release medications must be swallowed whole; may be taken with food

Erythromycin Estolate

Trade Name(s): Erythrozone, Ilosone

Chemically Related To: Erythromycin

Pregnancy Category: B

Medical Category: Antiacne agent, adjunct bowel preparation

Accepted Indications: Chlamydial conjunctivitis, GI tract infections, chlamydial pneumonia, diphtheria, bacterial endocarditis, erythrasma, gonorrhea, legionnaires' disease, sinusitis, acute otitis media

Mechanism of Action: Blocks protein formation; bacteriostatic

Absorption/Distribution: Absorbed in duodenum, unaffected by food; widely distributed

Half life: 1.4–{endash}2 hours

PO: 1–{endash}4 hours

IV: 30 min

Metabolism: Hepatic

Elimination: Renal, fecal

Research Notes: Has been associated with an increased risk of reversible, subclinical hepatotoxicity in approximately 10% of pregnant women

Adult Dosage: Antibacterial: 1–{endash}4 g/d

Child Dosage: 30–{endash}50 mg/kg/d

Infant Dosage: Same as child dose

Dosage Forms: Capsules: 250 mg; oral suspension: 125 mg/5 mL and 250 mg/5 mL; tablets: 250 mg and 500 mg; chewable tablets: 125 mg; injectable: 500 mg

Precautions: Do not miss doses; take at evenly spaced times

Frequent Side Effects: GI disturbances

Occasional Side Effects: Hypersensitivity, cholestatic jaundice, inflammation or phlebitis at injection site, sore mouth or tongue

Rare Side Effects: Hearing loss (reversible), cardiac arrhythmias

Antidotal Therapy: May include supportive measures

Disease States: Cardiac arrhythmias, hepatic impairment, hearing loss

Other Drugs: Lincomycins, digoxin, hepatotoxic medications, ototoxic medications, penicillins, xanthines, warfarin, terfenadine, astemizole, midazolam

Lab Tests: Urinary catecholamines, serum bilirubin, serum alkaline phosphatase

Erythromycin Ethylsuccinate

Trade Name(s): EES, E-Mycin, Erythro

Chemically Related To: Macrolides

Pregnancy Category: B

Medical Category: Antibacterial, antiacne agent, preoperative bowel preparation

Accepted Indications: Skin and soft tissue infections, legionnaires' disease, gonorrhea, otitis media, sinusitis

Unaccepted Indications: Viral infections

Mechanism of Action: Prevents protein synthesis

Absorption/Distribution: Absorbed mostly in duodenum; variable distribution

Half life: 1.4–{endash}2 h

PO: 1–{endash}4 h

Metabolism: Hepatic

Elimination: Renal

Research Notes: Hydrolyzed to free drug in GI tract and in blood

Adult Dosage: 500 mg q.i.d.

Elderly Dosage: Same as adult dose

Child Dosage: 7.5–{endash}12.5 mg/kg q.i.d.

Infant Dosage: 5 mg/kg q.i.d.

Dosage Forms: Oral suspension: 200 mg/5 mL and 400 mg/5 mL; for oral suspension: 200 mg/ 5mL and 400 mg/5 mL; tablets: 400 mg; chewable tablets: 200 mg

Warnings: Finish even if symptoms subside

Precautions: Check with the physician if there is no improvement after several days of therapy

Occasional Side Effects: Rash, itching, GI disturbances

Rare Side Effects: Hearing loss

Antidotal Therapy: May include gastric lavage, supportive measures, epinephrine, adrenocorticoids, antihistamines

Disease States: Hearing problems, history of cardiac problems, hepatic impairment

Other Drugs: Carbamazepine, cyclosporine, warfarin, xanthines, terfenadine, astemizole, theophylline, midazolam

Lab Tests: Alanine aminotransferase, asparate aminotransferase, serum bilirubin

Administrative Notes: Pediatric drops technique should be explained and a calibrated liquid–{endash}measuring device dispensed. Suspension will retain taste for 10 d after reconstitution. Dose should be taken with food to lessen GI discomfort.

Erythromycin Stearate

Trade Name(s): Erythrocin Stearate, Wintrocin

Chemically Related To: Erythromycin

Pregnancy Category: Use not recommended

Medical Category: Antibacterial, antiacne agent, bowel preparation adjunct

Accepted Indications: Diphtheria, preoperative bowel preparation, genitourinary tract infections, legionnaires' disease, skin and soft tissue infections

Mechanism of Action: Inhibits protein synthesis

Absorption/Distribution: Well absorbed

Half life: 1.4–{endash}2 h

PO: 1–{endash}4 h

Metabolism: Hepatic

Elimination: Hepatic, renal, fecal

Research Notes: Effective only against actively dividing organism; not all species or strains may be susceptible.

Adult Dosage: 250 mg q.i.d. up to 4 g/d

Child Dosage: 7.5–{endash}12.5 mg/kg q.i.d.

Infant Dosage: 7.5–{endash}12.5 mg/kg q.i.d.

Dosage Forms: Tablets: 250 mg and 500 mg

By System: Bacterial

Frequent Side Effects: GI upset

Occasional Side Effects: Inflammation at injection site, oral candidiasis

Rare Side Effects: Cholestatic jaundice, hearing loss

Antidotal Therapy: May include epinephrine, adrenocorticoids, antihistamines, gastric lavage

Disease States: Cardiac arrhythmias, hearing loss, liver problems

Other Drugs: Xanthines, warfarin, hepatotoxic medications, lincomycin, digoxin, ergotamine, astemizole, theophylline, terfenadine, midazolam

Lab Tests: Bilirubin, alanine aminotransferase, alkaline phosphatase, aspartate aminotransferase

Esmolol

Trade Name(s): Brevibloc

Chemically Related To: Beta-blockers

Pregnancy Category: C

Medical Category: Antiadrenergic, antiarrhythmic

Accepted Indications: Rapid cardiac arrhythmias (short-term control), intraoperative and postoperative tachycardia, intraoperative and postoperative hypertension

Mechanism of Action: Blocks beta1 receptors in cardiac tissue

Half life: 9 min (elimination), 2 min (distribution)

Peak activity: 10–{endash}20 min

Metabolism: Esterases in red blood cells

Elimination: Renal

Adult Dosage: Antiarrhythmic: loading, IV, 0.5 mg/kg for 1 min; maintenance, 0.05 mg/kg/min for 4 min, sequence may be repeated with an increment of 0.05 mg/kg/min; tachycardia or hypertension: initial, IV, 0.25–{endash}0.5 mg/kg for 1 min; maintenance, IV, 0.05 mg/kg/min for 4 min, sequence may be repeated with an increment of 0.05 mg/kg/min

Elderly Dosage: May require adjusted dose

Child Dosage: IV: 0.05 mg/kg/min, dosage may be titrated upward every 10 min to 0.3 mg/kg/min

Dosage Forms: Injection: 10 mg/mL and 250 mg/mL

By System: Vascular

Precautions: 250 mg/mL solution must be diluted before use

Frequent Side Effects: Hypotension

Occasional Side Effects: Confusion, anxiety, flushing, swelling at site of injection, reduced peripheral circulation, drowsiness, tiredness, pale skin, headache, nausea, vomiting

Rare Side Effects: Bradycardia, chest pain, breathing difficulty, fainting, fever, mental depression

Contraindications: Cardiac failure, cardiac shock, AV block, sinus bradycardia

Overdosage: Bradycardia, dizziness, fainting, drowsiness, difficulty breathing, seizures, bluish fingernails

Antidotal Therapy: May include atropine, IV lidocaine or phenytoin, IV fluids, oxygen, vasopressor, glucagon

Disease States: Allergy, asthma, emphysema, CHF, diabetes mellitus

Other Drugs: MAO inhibitors, insulin, xanthines, sympathomimetics, antidiabetics, digoxin, verapamil, propranolol and other beta blockers

Lab Tests: Blood pressure, EKG, heart rate

Estazolam

Trade Name(s): ProSom

Chemically Related To: Benzodiazepines

Scheduled Class: IV

Pregnancy Category: X

Medical Category: Sedative-hypnotic

Accepted Indications: Insomnia

Mechanism of Action: Mediates GABA firing

Absorption/Distribution: 93% protein binding

Half life: 10–{endash}24 h

Peak activity: 0.5–{endash}6 h

Elimination: Renal

Adult Dosage: 1 mg; maximum 2 mg in some patients

Elderly Dosage: 1 mg; small or debilitated older patients may start with 0.5 mg

Child Dosage: Up to 18 y: safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Tablets: 1 mg, 2 mg

Warnings: Avoid alcohol; may cause daytime drowsiness

Frequent Side Effects: Ataxia, drowsiness, slurred speech

Occasional Side Effects: Mental depression; confusion; abdominal cramps; blurred vision; other vision changes; changes in libido; constipation; diarrhea; dry mouth; euphoria; headache; increased bronchial secretions; watering of mouth; muscle spasm; nausea; vomiting; urination problems; tachycardia; palpations; trembling; extreme tiredness or weakness

Rare Side Effects: Allergic reaction, behavior problems, leukopenia, thrombocytopenia, extrapyramidal effects, hepatic dysfunction, muscle weakness, paradoxical reactions, phlebitis, venous thrombosis, seizures, anemia, neutropenia, blood dyscrasias, memory impairment

Contraindications: Glaucoma, myasthenia, pulmonary disease

Overdosage: Confusion, bradycardia, decreased reflexes, staggering, severe weakness, drowsiness, trembling, shortness of breath, slurred speech

Antidotal Therapy: May include emesis/gastric lavage, IV fluids, flumazenil

Disease States: Intoxication, coma, hyperkinesis, psychoses, history of drug abuse

Other Drugs: Alcohol, CNS depressants, antacids, cimetidine

Lab Tests: Sodium iodide I 123, sodium iodide I 131, metyrapone

Estradiol

Trade Name(s): Estrace, Estraderm

Chemically Related To: Estrogens

Pregnancy Category: X

Medical Category: Estrogen, oncology drug, prophylactic for osteoporosis

Accepted Indications: Estrogen deficiency; uterine bleeding; carcinomas of the breast and prostate; osteoporosis (prophylaxis)

Unaccepted Indications: Breast engorgement, contraception

Mechanism of Action: Estrogen replacement and reduces release of gonadotropin–{endash}releasing hormone from the hypothalamus

Absorption/Distribution: Moderate to high protein binding; well absorbed; distributed to most body tissues

Metabolism: Hepatic

Elimination: Renal

Research Notes: High affinity for fat tissue

Adult Dosage: 0.5–{endash}2 mg/d

Elderly Dosage: No dose reduction required

Child Dosage: Not recommended

Infant Dosage: Not recommended

Dosage Forms: Tablets: 1 mg and 2 mg; cypionate salt injection: 1 mg/mL and 5 mg/mL; valerate salt injection: 10 mg/mL, 30 mg/mL, and 40 mg/mL; transdermal system: 50 m{mu}g and 100 m{mu}g

By System: Endocrine

Warnings: Possibility of relationship to endometrial and breast cancer; breast-feeding mothers should avoid this drug; possible need for extra calcium

Precautions: Can hasten the premature closing of ends of bones in maturing children

Frequent Side Effects: Abdominal cramping, breast tenderness, nausea

Occasional Side Effects: Mild diarrhea, lightheadedness, amenorrhea, hepatitis

Rare Side Effects: Breast tumors, unopposed estrogen replacement therapy increases risk of uterine cancer in postmenopausal females

Contraindications: Breast cancer, bleeding from vaginal area

Disease States: Hepatic function impairment, hypercalcemia, hepatitis, jaundice, thrombophlebitis

Other Drugs: Hepatotoxic medications, corticotropin, cyclosporine, bromocriptine

Lab Tests: Thyroid function, glucose tolerance, fasting blood glucose, LDL concentration

Administrative Notes: Mandatory patient package insert

Estramustine Phosphate Sodium

Trade Name(s): Emcyt

Chemically Related To: Estradiol and nitrogen mustard

Scheduled Class: Unique compound

Pregnancy Category: D

Medical Category: Antineoplastic

Accepted Indications: Prostatic carcinoma

Absorption/Distribution: Well absorbed

Half life: Multiphasic 20 h

Metabolism: Hepatic

Elimination: Biliary/fecal, renal

Research Notes: Highly localized in prostatic tissue

Adult Dosage: 600 mg/m2 in 3 divided daily doses

Elderly Dosage: Decrease dose

Dosage Forms: Capsules: 140 mg

By System: Rapidly growing cells

Precautions: Avoid immunizations

Frequent Side Effects: Swelling of lower extremities, breast tenderness, decreased libido, diarrhea, nausea

Occasional Side Effects: Insomnia, vomiting

Rare Side Effects: Anemia, leukemia, thrombocytopenia, thrombosis

Contraindications: Thromboembolic disorders, active thrombophlebitis

Antidotal Therapy: May include gastric lavage, monitoring of liver and blood for 6 w

Disease States: Asthma, heart problems, mental depression, epilepsy

Other Drugs: Hepatotoxic medications, vaccines, calcium–{endash}containing products, calcium products, estrogens

Lab Tests: Metyrapone, induced platelet aggregability, sulfobromophthalein test, thyroid function, pyridoxine, serum folate concentrations

Estrogens, Conjugated

Trade Name(s): Premarin

Chemically Related To: Steroids

Pregnancy Category: X

Medical Category: Systemic estrogen, antineoplastic, osteoporosis prophylactic

Accepted Indications: Estrogen deficiency, atrophic vaginitis, female hypogonadism, vulvar squamous hyperplasia, primary ovarian failure, symptoms of menopause, breast carcinoma, prostatic carcinoma, osteoporosis

Unaccepted Indications: Postpartum breast engorgement

Mechanism of Action: Estrogen replacement. Increases DNA and RNA synthesis; reduces release of gonadotropin-releasing hormone

Absorption/Distribution: High distribution, especially to adipose tissue; moderate protein binding

Metabolism: Hepatic, muscle, kidneys, gonads

Elimination: Renal, fecal

Research Notes: Has a direct effect on testes, resulting in reduced concentrations of testosterone

Adult Dosage: 300 m{mu}g/d to 1.25 mg/d cyclically or continuously

Child Dosage: Use with caution

Dosage Forms: Tablets: 300 m{mu}g, 625 m{mu}g, 900 m{mu}g, 1.25 mg, and 2.5 mg; for injection: 25 mg; vaginal cream: 625 m{mu}g/g

By System: Hormonal

Warnings: May cause dental problems; stop taking drug if pregnancy suspected

Precautions: Visit physician regularly

Frequent Side Effects: Breast pain, edema in lower extremities, breast enlargement, cramping, skin irritation, anorexia, nausea

Occasional Side Effects: Amenorrhea, breast tumor, hepatitis, diarrhea, breakthrough bleeding, menorrhagia, gallbladder obstruction, increased or decreased libido, headache, vomiting, hepatitis

Rare Side Effects: Chorea, menorrhagia, unopposed estrogen replacement therapy increases risk of uterine cancer

Contraindications: Breast cancer, vaginal bleeding

Disease States: Endometriosis, gallbladder and liver problems, porphyria, thrombophlebitis, jaundice, hypercalcemia, uterine fibroids, coronary artery disease

Other Drugs: Calcium supplements, corticosteroids, cyclosporine, hepatotoxic medications, bromocriptine, somatropin, tamoxifen, corticotropin, tobacco, somatrem

Lab Tests: Metyrapone, clotting factors, glucose tolerance, triglycerides

Administrative Notes: Injection not compatible with acid pH; take with food

Estrogens, Conjugated/Meprobamate

Trade Name(s): PMB 200, PMB 400

Pregnancy Category: C

Medical Category: Estrogen replacement

Accepted Indications: Menopause with anxiety

Adult Dosage: 1 tablet t.i.d. for 21 d courses, followed by 1 w rest periods

Dosage Forms: Tablets: 0.45 mg/200 mg and 0.45 mg/400 mg

Estrogens, Conjugated/Methyltestosterone

Trade Name(s): Premarin with Methyltestosterone

Pregnancy Category: Not recommended

Medical Category: Androgen/estrogen

Accepted Indications: Menopause vasomotor symptoms

Adult Dosage: 1.25 mg/10 mg/d for 21 d, followed by 7 d of no medication, then 21 d of medication, etc.

Dosage Forms: Tablets: 0.625 mg/5 mg and 1.25 mg/10 mg

Estrogens, Esterified

Trade Name(s): Estratab, Menest

Chemically Related To: Estradiol; mixed compounds

Pregnancy Category: X

Medical Category: Estrogen, antineoplastic, prophylactic for osteoporosis

Accepted Indications: Estrogen deficiency, ovarian failure, menopause, hormonal imbalance-induced uterine bleeding, breast cancer, postmenopausal osteoporosis

Unaccepted Indications: Postpartum breast engorgement

Mechanism of Action: Increases synthesis of DNA and gonadotropin–{endash}releasing hormone, leading to reduction of FSH and LH

Absorption/Distribution: Distributed to most tissues

Peak activity: Within 2 h

Metabolism: Hepatic

Elimination: Renal

Research Notes: Elimination is prolonged in obese patients

Adult Dosage: 300 m{mu}g–{endash}10 mg/d. Dose varies by indication

Elderly Dosage: Same as adult dose

Child Dosage: Not recommended

Infant Dosage: Not recommended

Dosage Forms: Tablets: 300 m{mu}g, 625 m{mu}g, 1.25 mg, and 2.5 mg

By System: Endocrine

Warnings: Stop medication immediately and check with physician if pregnancy is suspected

Precautions: Dental problems possible

Frequent Side Effects: Breast pain or tenderness, peripheral edema, abdominal cramping, anorexia, nausea

Occasional Side Effects: Diarrhea, dizziness, headache, migraine headache, vomiting

Rare Side Effects: Amenorrhea, breakthrough bleeding, breast tumors, chorea, gallbladder obstruction, hepatitis, unopposed estrogen therapy increases risk of uterine cancer

Contraindications: Breast cancer, vaginal bleeding

Disease States: Endometriosis, gallbladder disease, hepatic dysfunction, jaundice, thrombophlebitis, uterine fibroids, hepatic porphyria

Other Drugs: Adrenocorticoids, bromocriptine, calcium supplements, hepatotoxic medications, cyclosporine, somatropin, tamoxifen

Lab Tests: Total serum cholesterol, calcium, clotting factors, sodium and triglycerides, phospholipids, glucose

Administrative Notes: Withdrawal bleeding occurs in many postmenopausal patients with an intact uterus who receive cyclic estrogen therapy with a progestin

Estrogens, Esterified/Methyltestosterone

Trade Name(s): Estratest, Estratest H.S., Premarin with Methyltestosterone

Pregnancy Category: C

Medical Category: Androgen-estrogen

Accepted Indications: Moderate to severe vasomotor symptoms associated with menopause

Unaccepted Indications: Postpartum breast engorgement

Adult Dosage: 625 m{mu}g–{endash}2.5 mg/1.25–{endash}5 mg/d for 21 d courses, followed by 1 w rest periods

Dosage Forms: Tablets: 0.625 mg/1.25 mg, 0.625 mg/5 mg, 1.25 mg/2.5 mg and 1.25 mg/10 mg

Estrone

Trade Name(s): Aquest, Estragyn 5, Estro-A, Estrone `5', Kestrone-5, Wehgen

Chemically Related To: Estrogen

Pregnancy Category: X

Medical Category: Systemic estrogen; antineoplastic

Accepted Indications: Estrogen deficiency, vaginitis, ovarian failure, uterine bleeding, female hypogonadism, vulvar squamous hyperplasia, menopause, prostatic carcinoma

Unaccepted Indications: Postpartum breast engorgement reduction

Absorption/Distribution: Distributed to most tissues, especially adipose tissue

Metabolism: Hepatic, muscle, renal, gonads

Elimination: Renal, fecal

Adult Dosage: Varies by indication

Elderly Dosage: Same as adult dose

Child Dosage: Use with caution

Infant Dosage: Not established

Dosage Forms: Sterile suspension: 2 mg/mL and 5 mg/mL

Warnings: Protect from freezing

Frequent Side Effects: Breast pain, enlargement of breasts, gynecomastia (males), peripheral edema, abdominal cramping, anorexia, nausea, skin irritation

Occasional Side Effects: Amenorrhea, breakthrough bleeding, menorrhagia, spotting, breast tumors, gall bladder obstruction, hepatitis, diarrhea, headache, contact lens intolerance, decreased libido (males), increased libido (females), migraines, vomiting

Contraindications: Breast cancer, vaginal bleeding

Disease States: Endometriosis, jaundice, uterine fibroids, gall bladder disease, hepatic dysfunction, hypercalcemia, porphyria, thrombophlebitis, cerebrovascular disease, coronary artery disease

Other Drugs: Bromocriptine, corticosteroids, calcium supplements, corticotropin, cyclosporine, hepatotoxic medications, tobacco, somatrem, somatropin, tamoxifen

Lab Tests: Glucose tolerance, metyrapone

Estropipate

Trade Name(s): Ogen

Chemically Related To: Ethinyl estradiol

Pregnancy Category: X

Medical Category: Estrogen, prophylactic for osteoporosis

Accepted Indications: Estrogen deficiency, atrophic vaginitis, vulvar squamous hyperplasia, primary ovarian failure, breast cancer, prostatic cancer, prostatic carcinoma

Unaccepted Indications: Postpartum breast engorgement

Mechanism of Action: Reduces release of gonadotropin-releasing hormone from the hypothalamus

Absorption/Distribution: Widely distributed; settles in adipose tissue; moderate protein binding

Metabolism: Hepatic, muscular, renal

Elimination: Renal/fecal

Research Notes: Semisynthetic compound

Adult Dosage: 750 m{mu}g–{endash}6 mg/d cyclically or continuously. Dose varies by indication

Child Dosage: Decrease dosage

Dosage Forms: Tablets: 750 m{mu}g, 1.5 mg, 3 mg, 6 mg

By System: Hormonal

Warnings: Stop medication if pregnancy suspected

Precautions: Dental hygiene should be practiced meticulously

Frequent Side Effects: Breast pain, peripheral edema, nausea, loss of appetite

Occasional Side Effects: Diarrhea, dizziness, headache, decreased libido

Rare Side Effects: Amenorrhea, breast tumors, chorea, hepatitis, unopposed estrogen replacement therapy increases risk of uterine cancer

Contraindications: Breast cancer, abnormal vaginal bleeding

Disease States: Hypercalcemia, thrombophlebitis, endometriosis, gallbladder problems, jaundice

Other Drugs: Cyclosporine, hepatotoxic medications, tamoxifen, somatropin, calcium supplements, bromocriptine

Lab Tests: Fasting blood glucose, glucose tolerance, metyrapone, thyroid function, platelet aggregability

Ethacrynic Acid

Trade Name(s): Edecrin

Chemically Related To: Thiazide diuretics

Pregnancy Category: B

Medical Category: Diuretic, antihypertensive, antihypercalcemic

Accepted Indications: Edema, hypertension, hypercalcemia

Mechanism of Action: Inhibits reabsorption of Na and Cl in loop of Henle

Absorption/Distribution: High protein binding; rapidly absorbed from GI tract

PO: 2 h

IV: 15–{endash}30 min

Metabolism: Hepatic

Elimination: Renal, biliary/fecal

Research Notes: Oral dosage form: onset of action, 0.5 h; duration of action, 6–{endash}8 h

Adult Dosage: 50–{endash}200 mg/d up to 400 mg/d

Elderly Dosage: Greater risk of circulatory collapse and thromboembolic episodes

Child Dosage: 25 mg/d

Infant Dosage: Not recommended

Dosage Forms: Tablets: 25 mg and 50 mg; injection USP 50 mg

By System: Cardiovascular

Warnings: May increase blood glucose level

Precautions: Use with caution if surgery required and in use of alcohol

Frequent Side Effects: Diarrhea, loss of appetite, orthostatic hypotension

Occasional Side Effects: Electrolyte imbalance (hyponatremia, hypokalemia), ototoxicity, blurred vision, confusion, headache, nervousness

Rare Side Effects: Blood in urine, rash, gout, thrombocytopenia, pain at site of injection

Disease States: Anuria, diabetes mellitus, gout, pancreatitis, myocardial infarction, hearing problems

Other Drugs: Anticoagulants, lithium, hypokalemia–{endash}causing medications, NSAIDs, alcohol, digitalis

Lab Tests: BUN, serum uric acid, blood and urine glucose concentrations, magnesium and potassium concentrations, calcium and chloride levels

Administrative Notes: Injection solution is physically incompatible with whole blood and its derivatives; drug should be taken with meals; additional potassium may be needed

Ethambutol Hydrochloride

Trade Name(s): Myambutol

Pregnancy Category: B

Medical Category: Antimycobacterial

Accepted Indications: Tuberculosis

Mechanism of Action: Suppresses multiplication of mycobacteria by interfering with RNA synthesis

Absorption/Distribution: Rapid absorption (75–{endash}80%) from GI tract; distributed everywhere except CSF; low protein binding

Half life: 3–{endash}4 h

PO: 2–{endash}4 h

Metabolism: Hepatic

Elimination: Renal, fecal

Research Notes: Therapy may be required for up to several y or indefinitely

Adult Dosage: Initial treatment 500 mg–{endash}2.5 g/d

Elderly Dosage: Age-related decrease in renal function may necessitate adjustment in dosage

Child Dosage: Not established

Infant Dosage: Not established

Dosage Forms: Tablets: 100 mg and 400 mg

Warnings: May cause optic neuritis

Precautions: Continue medicine for full course of treatment

Occasional Side Effects: Acute gout or hyperuricemia, GI disturbances, headache, confusion, and disorientation

Rare Side Effects: Hypersensitivity, peripheral neuritis, retrobulbar optic neuritis

Disease States: Gout, optic neuritis, renal function impairment

Other Drugs: Neurotoxic medications

Lab Tests: Uric acid

Ethchlorvynol

Trade Name(s): Placidyl

Chemically Related To: Non-barbiturate depressants

Scheduled Class: IV

Abuse Potential: Mild

Pregnancy Category: C

Medical Category: Sedative-hypnotic

Accepted Indications: Insomnia (has generally been replaced by other sedative-hypnotic agents)

Absorption/Distribution: Rapidly absorbed from GI tract

Half life: 10–{endash}20 h

PO: Within 2 h

Metabolism: Hepatic

Elimination: Renal

Adult Dosage: 500 mg–{endash}1 g

Elderly Dosage: Dosage should be decreased

Dosage Forms: Capsules: 200 mg, 500 mg, and 750 mg

By System: CNS subcortical nuclei

Warnings: Medication should not be used for periods exceeding 1 w

Frequent Side Effects: Blurred vision, dizziness or lightheadedness, indigestion, nausea or vomiting, numbness of face, stomach pain, unpleasant aftertaste, extreme tiredness or weakness

Occasional Side Effects: Paradoxical excitation reaction, thrombocytopenia

Rare Side Effects: Cholestatic jaundice, withdrawal symptoms

Overdosage: Continuing confusion, severe weakness, shortness of breath or slow and troubled breathing, slurred speech, staggering, bradycardia

Antidotal Therapy: May include supportive measures

Disease States: Alcoholism, drug abuse, hepatic or renal function impairment, mental depression, uncontrolled pain, porphyria

Other Drugs: Alcohol, CNS antidepressants, anticoagulants, tricyclic antidepressants

Ethinamate

Trade Name(s): Valmid

Scheduled Class: IV

Pregnancy Category: C

Medical Category: Sedative-hypnotic

Accepted Indications: Short-term insomnia (has generally been replaced by other sedative-hypnotic agents)

Mechanism of Action: Unknown

Absorption/Distribution: Rapidly absorbed

Half life: 2.5 h

Elimination: Renal

Adult Dosage: 500 mg–{endash}1 g 20 min before bedtime

Child Dosage: Up to 15 y: not established

Infant Dosage: Not established

Dosage Forms: Capsules: 500 mg

Frequent Side Effects: Allergic reaction

Occasional Side Effects: Indigestion, abdominal pain

Rare Side Effects: Daytime drowsiness, thrombocytopenia

Overdosage: Bradycardia, slurred speech, confusion

Antidotal Therapy: May include IV fluids, charcoal, dialysis

Disease States: Alcoholism, drug abuse, depression, intractable pain

Other Drugs: Alcohol, CNS depressants

Lab Tests: Phentolamine, urinary steroid

Ethinyl Estradiol

Trade Name(s): Estinyl

Chemically Related To: Diethylstilbestrol

Pregnancy Category: X

Medical Category: Systemic estrogen, antineoplastic, prophylactic for osteoporosis

Accepted Indications: Estrogen deficiency, atrophic vaginitis, female hypogonadism, symptoms of menopause, breast and prostatic carcinoma, osteoporosis (prophylaxis)

Unaccepted Indications: Postpartum breast engorgement, postcoital contraceptive

Mechanism of Action: Estrogen replacement. Reduces the release of gonadotropin–{endash}releasing hormone leading to a reduction in release of FSH and LH

Absorption/Distribution: Distributed to most tissues; higher affinity for adipose tissue; moderate to high protein binding

Metabolism: Hepatic

Elimination: 65% renal; some percentage fecal

Research Notes: May predispose patient to bleeding of gingival tissue

Adult Dosage: 50 m{mu}g–{endash}3 mg/d. Dose varies by indication

Elderly Dosage: No demonstration of specific problems

Child Dosage: May accelerate epiphyseal closure; should be used with caution in children and adolescents in whom bone growth is not complete

Infant Dosage: Not recommended

Dosage Forms: Tablets: 20 m{mu}g, 50 m{mu}g, and 500 m{mu}g

By System: Endocrine

Warnings: Stop medication immediately and check with physician if pregnancy is suspected

Frequent Side Effects: Breast pain or tenderness, peripheral edema, gynecomastia, abdominal cramping, anorexia, nausea

Occasional Side Effects: Diarrhea, dizziness, headache, intolerance to contact lenses, migraine headache

Rare Side Effects: Amenorrhea, gallbladder obstruction, hepatitis, chorea, increased risk of uterine cancer if unopposed estrogen replacement therapy is used

Contraindications: Breast cancer, abnormal and unexplained vaginal bleeding, thrombophlebitis

Disease States: Endometriosis, gallbladder disease, hepatic dysfunction, jaundice, thrombophlebitis, uterine fibroids

Other Drugs: Adrenocorticoids, bromocriptine, calcium supplements, hepatotoxic medications, somatropin, tamoxifen

Lab Tests: Fasting blood glucose, glucose tolerance, thyroid function, calcium

Administrative Notes: Administer lowest effective dose

Ethinyl Estradiol/Ethynodiol Diacetate

Trade Name(s): Demulen 1/35-21, 1/35-28, 1/50-21, 1/50-28

Pregnancy Category: C

Medical Category: Systemic contraceptive, estrogen-progestin

Accepted Indications: Pregnancy prophylaxis, endometriosis, female hypogonadism, polycystic ovary syndrome

Unaccepted Indications: Pregnancy test, treatment of threatened or habitual abortion

Adult Dosage: 21 d cycle: 1 tablet/d for 21 d; 28 d cycle: 1 tablet/d for 28 d

Dosage Forms: Tablets: 35 m{mu}g/1 mg and 50 m{mu}g/1 mg

Ethinyl Estradiol/Levonorgestrel

Trade Name(s): Levlen 21, 28; Nordette-21, -28; Tri-Levlen 21, 28; Triphasil 21, 28

Pregnancy Category: C

Medical Category: Systemic contraceptive, estrogen-progestin

Accepted Indications: Pregnancy prophylaxis, endometriosis, female hypogonadism, polycystic ovary syndrome

Unaccepted Indications: Pregnancy test, treatment of threatened or habitual abortion

Adult Dosage: 21 d cycle: 1 tablet/d for 21 d; 28 d cycle: 1 tablet/d for 28 d

Dosage Forms: Tablets: monophasic formula: 30 m{mu}g/150 m{mu}g; triphasic formula also available

Ethinyl Estradiol/Norethindrone

Trade Name(s): Brevicon, Genora, Jenest, Loestrin, ModiCon, Nelova, Norethin, Norinyl, Ortho-Novum, Ovcon, Synphasic, Tri-Norinyl

Pregnancy Category: X

Medical Category: Oral contraceptive

Accepted Indications: Pregnancy prophylaxis, hypermenorrhea

Adult Dosage: 21 day cycle: 1 tablet/d for 21 d; 28 day cycle: 1 tablet/d for 28 d

Dosage Forms: Monophasic 21 d cycle formula: 35 m{mu}g/400 m{mu}g; 35 m{mu}g/500 m{mu}g; 35 m{mu}g/1 mg and 50 m{mu}g/1 mg; biphasic and triphasic formulas also available

Ethinyl Estradiol/Norgestrel

Trade Name(s): Lo/Ovral, Ovral

Pregnancy Category: X

Medical Category: Systemic contraceptive, estrogen-progestin, postcoital contraceptive

Accepted Indications: Pregnany prophylaxis, endometriosis, female hypogonadism, polycystic ovary syndrome

Unaccepted Indications: Pregnancy test, treatment of threatened or habitual abortion

Adult Dosage: 21 d cycle: 1 tablet/d for 21 d; 28 d cycle: 1 tablet for 28 d

Dosage Forms: Tablets: 30 m{mu}g/300 m{mu}g and 50 m{mu}g/500 m{mu}g

Ethionamide

Trade Name(s): Trecator-SC

Chemically Related To: Unique compound

Pregnancy Category: Not recommended

Medical Category: Antimycobacterial

Accepted Indications: Tuberculosis

Mechanism of Action: Inhibits peptide synthesis

Absorption/Distribution: Rapidly absorbed; widely distributed in most tissues and fluids

Half life: 3 h

PO: 1.8 h

Metabolism: Hepatic

Elimination: Renal

Research Notes: Not all species or strains of a particular organism may be susceptible to ethionamide

Adult Dosage: 250 mg–{endash}1 g/d

Child Dosage: Up to 750 mg

Infant Dosage: Same as child dose

Dosage Forms: Tablets: 250 mg

Warnings: Finish entire prescription even if symptoms subside; should be administered concurrently with other antitubercular drugs

Precautions: Use caution if blurred vision or loss of vision occurs; take pyridoxine concurrently to prevent or minimize signs of peripheral neuritis

Frequent Side Effects: GI disturbances, orthostatic hypotension

Occasional Side Effects: Gynecomastia, hepatitis or jaundice, peripheral neuritis, psychiatric disturbances

Rare Side Effects: Goiter or hypothyroidism, hypoglycemia, optic neuritis, rash

Disease States: Diabetes mellitus, severe hepatic function impairment

Other Drugs: Cycloserine, neurotoxic medications, pyridoxine

Lab Tests: Serum alanine aminotransferase, serum aspartate aminotransferase

Administrative Notes: Take with food if GI irritation occurs

Ethopropazine Hydrochloride

Trade Name(s): Parsidol

Chemically Related To: Phenothiazines

Pregnancy Category: C

Medical Category: Antidyskinetic

Accepted Indications: Parkinsonism, extrapyramidal reactions, athetosis

Mechanism of Action: Blocks central cholinergic receptors to balance cholinergic and dopaminergic receptor activity

Absorption/Distribution: Well absorbed from GI tract

PO: 4 h

Adult Dosage: 50–{endash}600 mg/d

Elderly Dosage: May predispose elderly patients to glaucoma; memory may become severely impaired

Child Dosage: Not established

Infant Dosage: Not established

Dosage Forms: Tablets: 10 mg and 50 mg

By System: CNS, subcortical nuclei

Warnings: Avoid alcohol and CNS depressants; avoid use of antacids or antidiarrheal medication within 1 h of taking medication

Precautions: May increase eye sensitivity to bright light; use caution during exercise and hot weather

Frequent Side Effects: Mild anticholinergic effects (blurred vision, constipation, decreased sweating, painful urination, nausea or vomiting, dry mouth)

Occasional Side Effects: Headache, memory loss, muscle cramps, hypotension, sore tongue

Rare Side Effects: Confusion, increased intraocular pressure

Overdosage: Anticholinergic effects, CNS depression or stimulation, psychosis

Antidotal Therapy: May include emesis/gastric lavage; physostigmine; diazepam and pilocarpine

Disease States: Cardiac arrhythmias, tardive dyskinesia, extrapyramidal reactions, hypertension, myasthenia gravis, urinary retention

Other Drugs: Alcohol, CNS depressants, anticholinergics, MAO inhibitors, antacids, chlorpromazine, adsorbent antidiarrheals

Administrative Notes: When drug is to be discontinued, dose should be reduced gradually to prevent sudden increase in adverse symptoms

Ethosuximide

Trade Name(s): Zarontin

Pregnancy Category: Problems in humans not documented

Medical Category: Anticonvulsant

Accepted Indications: Absence seizure pattern, epilepsy

Mechanism of Action: May increase seizure threshold

Absorption/Distribution: Rapid and complete, distributed to all body tissues except fat

Half life: 56–{endash}60 h

PO: 3–{endash}7 h

Metabolism: Hepatic

Elimination: Renal

Adult Dosage: 15–{endash}30 mg/kg/d up to 1.5 g/d

Elderly Dosage: Same as adult dose

Child Dosage: Under 6 y: 15–{endash}40 mg/kg/d; 6 y and over: same as adult dose

Infant Dosage: 15–{endash}40 mg/kg/d

Dosage Forms: Capsules: 250 mg; syrup: 250 mg/5 mL

Frequent Side Effects: Anorexia, ataxia, hiccups, Stevens-Johnson syndrome, systemic lupus erythematosus, dizziness, headache, stomach cramps

Occasional Side Effects: Irritability, mental depression, difficult concentration, nightmares, unusual tiredness

Rare Side Effects: Blood dyscrasias, leukopenia, aplastic anemia, eosinophilia, tonic-clonic convulsions, mood changes, rash

Overdosage: CNS depression, severe nausea and vomiting, respiratory depression

Antidotal Therapy: May include emesis, gastric lavage, activated charcoal, cathartics

Disease States: Blood dyscrasias, hepatic function impairment, renal function impairment, porphyria

Other Drugs: CNS depressants, haloperidol

Lab Tests: Blood cell counts

Ethynodiol Diacetate

Trade Name(s): Not available as a single agent

Chemically Related To: Progesterones

Medical Category: Progestin

Accepted Indications: When used in combination with estrogens: pregnancy prophylaxis, endometriosis, polycystic ovary syndrome

Mechanism of Action: Suppresses ovulation by inhibiting secretion of FSH and LH

Absorption/Distribution: Readily absorbed from GI tract

Metabolism: Hepatic

Elimination: Renal

Etodolac

Trade Name(s): Lodine

Chemically Related To: Aspirin

Pregnancy Category: C

Medical Category: NSAID, analgesic, anti-inflammatory, antipyretic

Accepted Indications: Pain and osteoarthritis

Unaccepted Indications: Rheumatoid arthritis

Mechanism of Action: Inhibits the synthesis of prostaglandins

Absorption/Distribution: Rapidly absorbed; extensively distributed; very high protein binding

Half life: Approximately 1 h

PO: 25–{endash}180 min

Metabolism: Hepatic

Elimination: Renal

Research Notes: Duration of action 4–{endash}5 h; onset of action within 30 min

Adult Dosage: 400 mg b.i.d. or t.i.d.

Elderly Dosage: NSAID-induced side effects more dangerous to the elderly

Child Dosage: Not established

Infant Dosage: Not established

Dosage Forms: Capsules: 200 mg and 300 mg

By System: CNS

Warnings: Alcohol use can increase GI irritation

Precautions: Sensitivity to light possible; increased chance of bleeding if surgery is required

Occasional Side Effects: Lightheadedness, headache, tinnitus, constipation, vomiting, gastric irritation

Rare Side Effects: Hypertension, edema, GI bleeding

Contraindications: Nasal polyps

Overdosage: Lethargy, drowsiness, abdominal pain, nausea, vomiting, GI hemorrhage, acute renal failure, convulsions, coma

Antidotal Therapy: Do not use ipecac but induce vomiting with activated charcoal; monitor vital signs

Disease States: Asthma; peptic ulcer; diabetes; systemic lupus erythematosus; renal or hepatic impairment

Other Drugs: Anticoagulants, thrombolytic agents, additional NSAIDs

Lab Tests: Bleeding times, liver function tests

Administrative Notes: Concurrent use with a narcotic allows less narcotic to be used and increases control of pain; food slows absorption of the drug, but peak activity is not affected

Etoposide

Trade Name(s): VePesid

Chemically Related To: Unique compound

Pregnancy Category: D

Medical Category: Antineoplastic

Accepted Indications: Testicular, lung and bladder carcinomas; Hodgkin's and non-Hodgkin's lymphomas; acute myelocytic leukemia; Ewing's sarcoma; Kaposi's sarcoma

Mechanism of Action: Inhibits DNA synthesis

Absorption/Distribution: Variable bioavailability; high protein binding

Half life: 7 h

Metabolism: Hepatic

Elimination: Renal, fecal, biliary

Research Notes: Cell cycle-dependent; phase-specific

Adult Dosage: Lung cancer small cell: oral: 70 mg/m2/d for 4 d to 100 mg/m2 for 5 d; repeat every 3–{endash}4 w

Elderly Dosage: Same as adult dose

Dosage Forms: Capsules: 50 mg; for injection: 20 mg/mL

By System: Rapidly growing tissues

Warnings: Avoid immunizations; in combination therapy, take each medication at right time

Precautions: Take medication even with GI distress

Frequent Side Effects: Anemia, leukopenia, thrombocytopenia, nausea and vomiting, hair loss

Occasional Side Effects: Stomatitis, tiredness, diarrhea

Rare Side Effects: Anaphylaxis, chemical phlebitis, neurotoxicity

Disease States: Bone marrow depression, chickenpox, infection, liver/kidney problems, herpes zoster

Other Drugs: Blood dyscrasia–{endash}causing medications, live virus vaccines, bone marrow depressants, radiation therapy

Administrative Notes: Dilute injection with 5% dextrose or 0.9% sodium chloride

Etretinate

Trade Name(s): Tegison

Chemically Related To: Unique compound

Pregnancy Category: X, major teratogenic risk

Medical Category: Antipsoriatic

Accepted Indications: Psoriasis, keratinization disorders, oral lichen planus

Mechanism of Action: Normalization of epidermis

Absorption/Distribution: Absorbed in small intestine; distributed especially to adipose tissue; high protein binding

Half life: 120 d

PO: 2–{endash}6 h

Metabolism: Hepatic

Elimination: Biliary, renal

Research Notes: To treat relapses, give same dosage as used in first treatment

Adult Dosage: 750 m{mu}g–{endash}1 mg/kg/d up to 1.5 mg/kg/d

Child Dosage: Do not use unless all other therapies have failed

Infant Dosage: Do not use unless all other therapies have failed

Dosage Forms: Capsules: 10 mg and 25 mg

By System: Dermatologic

Warnings: May cause dizziness and blurred vision; do not take if pregnant

Precautions: Avoid sun/sun lamp

Frequent Side Effects: Joint pain, muscle cramps, chapped lips, headache, nosebleed, tiredness

Occasional Side Effects: Double vision, hepatitis, earache, dizziness, nausea, sore tongue

Rare Side Effects: Amnesia, anxiety, confusion, bleeding gums, ear infection, photophobia

Disease States: Heart or liver problems, diabetes mellitus, obesity, hypertriglyceridemia

Other Drugs: Alcohol, medicated soaps and cleansers, acne preparations with peeling agent, vitamin A, tetracyclines, photosensitizing medications

Lab Tests: White blood cell counts, fasting blood glucose, BUN, platelet counts, serum cholesterol, HDLs, red blood cell counts

Administrative Notes: Take with milk or fatty foods. Avoid pregnancy and do not donate blood for 2 years or longer after discontinuing drug. Rule out pregnancy before use. Ensure reliable contraception.

Famotidine

Trade Name(s): Pepcid

Chemically Related To: Cimetidine

Pregnancy Category: B

Medical Category: Histamine H2 receptor antagonist, antiulcer agent, gastric acid secretion inhibitor

Accepted Indications: Duodenal ulcer, gastric ulcer, hypersecretory conditions, Zollinger-Ellison syndrome, mastocytosis, adenoma

Unaccepted Indications: Minor digestive complaints

Mechanism of Action: Competitive inhibition of histamine

Absorption/Distribution: Rapid, incomplete absorption; low protein binding

Half life: 2.5–{endash}3.5 h

PO: 1–{endash}3 h

IV: 0.5 h

Metabolism: Hepatic

Elimination: Renal

Research Notes: Onset of action, 1 h

Adult Dosage: 40–{endash}80 mg/d

Child Dosage: Tablets and oral suspension: more than 10 kg: 1–{endash}2 mg/kg/d in 2 divided doses; less than 10 kg: 1–{endash}2 mg/kg/d in 3 divided doses; Injection: not established

Dosage Forms: Tablets: 20 mg and 40 mg; injection: 10 mg/mL; for oral suspension, 40 mg/5 mL

By System: GI

Warnings: Avoid alcohol; discontinue smoking

Precautions: Consult physician if condition continues

Occasional Side Effects: Constipation, diarrhea, headache

Rare Side Effects: Bradycardia, tightness in chest, fever, thrombocytopenia

Antidotal Therapy: No specific antidote; supportive treatment may include emesis/gastric lavage, IV diazepam, atropine, lidocaine

Disease States: Cirrhosis, kidney/liver problems

Other Drugs: Bone marrow depressants, ketoconazole, sucralfate

Lab Tests: Gastric acid secretion test; skin tests with allergen extracts; transaminase

Administrative Notes: Treatment rarely continues beyond 8 w; avoid food that causes gastric irritation

Felodipine

Trade Name(s): Plendil, Renedil

Chemically Related To: Calcium channel blockers

Pregnancy Category: C

Medical Category: Antianginal, antihypertensive

Accepted Indications: Angina, hypertension, Raynaud's phenomenon

Mechanism of Action: Inhibits calcium ion entry

Absorption/Distribution: Almost completely absorbed

Half life: Polyphasic 11–{endash}16 h (terminal)

PO: 2.5–{endash}5 h

Metabolism: Hepatic

Elimination: Renal, biliary/fecal

Research Notes: Onset of action, 2–{endash}5 h; duration of action, 24 h

Adult Dosage: Antihypertensive, initial: 5 mg once daily, dosage adjusted as needed; maintenance: 5–{endash}10 mg once daily. Antianginal, 10 mg once daily

Elderly Dosage: Lower dosage may be required

Child Dosage: Safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Extended-release tablets: 5 mg and 10 mg

By System: Vascular

Frequent Side Effects: Peripheral edema, headache

Occasional Side Effects: Rash, angina, tachycardia, constipation, diarrhea, dizziness, flushing, feeling of warmth, nausea, extreme tiredness

Rare Side Effects: Hypotension, gingival hyperplasia, mental depression, dry mouth

Contraindications: Hypotension, heart failure, liver impairment, acute myocardial infarction

Disease States: Bradycardia

Other Drugs: Hydrocarbon inhalation anesthetics, NSAIDs, cimetidine, estrogens, hypotension–{endash}producing medications, lithium, prazosin, procainamide, quinidine, medications prolonging QT interval, sympathomimetics

Lab Tests: EKG, QT interval, T-wave, prolactin

Fenoprofen Calcium

Trade Name(s): Nalfon

Chemically Related To: Aspirin

Pregnancy Category: B

Medical Category: Antirheumatic, analgesic, antigout

Accepted Indications: Rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, psoriatic arthritis, pain, acute attacks of gout or calcium pyrophosphate deposition disease

Mechanism of Action: Inhibits the activity of the enzyme cyclo-oxygenase, which prevents the formation of prostaglandins

Absorption/Distribution: Rapid absorption

Half life: 3 h (elimination)

Peak activity: 1–{endash}2 h

Metabolism: Hepatic

Elimination: Renal

Adult Dosage: 800–{endash}2400 mg/d

Elderly Dosage: Same as adult dosage

Child Dosage: Safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Capsules: 200 mg and 300 mg; tablets: 600 mg

By System: Pain receptor mediation in peripheral nervous system and CNS

Frequent Side Effects: Dermatitis

Occasional Side Effects: Confusion, GI irritation

Rare Side Effects: Edema, arrhythmia, convulsions, mental depression, dermatitis, necrolysis, Stevens-Johnson syndrome, peptic ulcer

Contraindications: Anemia or asthma

Disease States: Nasal polyps, asthma, peptic ulcer, hypertension, sepsis, hemophilia, renal function impairment, stomatitis, bronchospasm, systemic lupus erythematosus

Other Drugs: Acetaminophen, potassium supplements, antacids, insulin, triamterene, aspirin, radiation therapy, colchicine, gold compounds, methotrexate, nephrotoxic medications, verapamil, phenobarbital, platelet aggregation inhibitors, probenecid

Lab Tests: Bleeding time, serum potassium concentrations, liver function

Administrative Notes: Fenoprofen excreted in breast milk in very small quantities; use caution in patients with genitourinary tract problems

Fentanyl (Transdermal)

Trade Name(s): Duragesic, Sublimaze

Chemically Related To: Meperidine

Scheduled Class: II

Abuse Potential: High

Pregnancy Category: C

Medical Category: Analgesic

Accepted Indications: Chronic pain

Unaccepted Indications: Acute, mild, or intermittent pain

Mechanism of Action: Binds with stereospecific receptors at many sites within the CNS, alters processes affecting perception and emotional response to pain

Absorption/Distribution: Some fentanyl released relatively rapidly, most located in reservoir layer

Half life: 17 h (single application), 13–{endash}31 h (multiple applications)

Peak activity: 24–{endash}72 h

Metabolism: Hepatic

Elimination: Renal, fecal

Research Notes: Onset of action, 12–{endash}24 h; duration of action, 72 h

Adult Dosage: Topical to skin of torso q72h

Elderly Dosage: Lower dosage may be required

Child Dosage: Up to 18 y: safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Transdermal system: 2.5 mg, 5 mg, 7.5 mg, and 10 mg

By System: CNS

Warnings: Do not operate dangerous machinery

Frequent Side Effects: Apnea, CNS depression, difficulty in breathing, hypoventilation, hallucinations, urinary retention, anxiety, confusion, GI effects, headache, itching, nausea, sweating, vomiting

Occasional Side Effects: Chest pain; CNS effects; arrhythmia; localized skin reaction; spitting of blood; agitation; hypotension; bloated feeling; burning, tingling, or crawling sensation in the skin; memory loss; unusual dreams

Rare Side Effects: Abdominal distention, amblyopia, bladder pain, bradycardia, urination cessation, CNS toxicity, exfoliative dermatitis, fluid-filled blisters, urge to urinate, respiratory problems, asthma

Overdosage: Cold, clammy skin; confusion; convulsions; dizziness; drowsiness; nervousness; restlessness; weakness; hypotension; pinpoint pupils; bradycardia; troubled breathing; unconsciousness

Antidotal Therapy: May include removal of transdermal system; administration of naloxone, atropine, IV fluids

Disease States: Diarrhea associated with pseudomembranous colitis; diarrhea caused by poisoning; acute respiratory depression; acute asthma; respiratory impairment; inflammatory bowel disease, head injury, arrhythmias

Other Drugs: Alcohol, CNS depressants, naltrexone, opioid analgesics, monoamine oxidase inhibitors

Administrative Notes: Short-acting opioid may be applied during first 24 h

Fentanyl Citrate

Trade Name(s): Sublimaze

Scheduled Class: II

Pregnancy Category: C

Medical Category: Anesthesia adjunct, analgesic

Accepted Indications: General anesthesia adjunct, postoperative pain

Mechanism of Action: Affects perception and emotional response to pain

Half life: Triphasic, 1.7 min–{endash}3.6 h

IM: 20–{endash}30 min

IV: 3–{endash}5 min

Metabolism: Hepatic

Elimination: Hepatic

Research Notes: Onset of action, 1–{endash}2 min IV, 7–{endash}15 min IM; duration of action, 0.5–{endash}1 h IV; 1–{endash}2 h IM

Adult Dosage: Up to 150 m{mu}g/kg as primary anesthetic in major surgery; 2–{endash}50 m{mu}g as anesthesia adjunct

Elderly Dosage: Lower dosage required

Child Dosage: 2–{endash}12 y: IV, 2–{endash}3 m{mu}g/kg

Infant Dosage: Up to 2 y: not established

Dosage Forms: Injection: 50 m{mu}g/mL

Frequent Side Effects: Bradycardia, hypotension, respiratory depression, drowsiness, nausea, vomiting

Occasional Side Effects: Arrhythmia, confusion, biliary spasm, blurred vision, constipation, ureteral spasm

Rare Side Effects: Bronchospasm, circulatory depression, convulsions, dermatitis, dysesthesia, laryngospasm, mental depression, paradoxical CNS excitation

Overdosage: Cold, clammy skin; dizziness; drowsiness; restlessness; pinpoint pupils; weakness

Antidotal Therapy: May include atropine, naloxone, IV fluids, vasopressors

Disease States: Bradyarrhythmias, compromised cardiac reserve, head injury, hepatic function impairment, cirrhosis, renal function impairment, respiratory impairment, hypothyroidism

Other Drugs: Benzodiazepines, buprenorphine, CNS depressants, hepatic enzyme inhibitors, naltrexone, MAO inhibitors

Ferrous Fumarate

Trade Name(s): Feostat Drops, Feostat, Fumerin, Hemocyte, Ircon, Span-FF

Chemically Related To: Iron

Pregnancy Category: A

Medical Category: Antianemia

Accepted Indications: Iron deficiency anemia

Mechanism of Action: Provides elemental iron

Absorption/Distribution: Absorption increased when stores depleted; high protein binding

Metabolism: Stored in blood and liver

Research Notes: Contains 33% elemental ferrous iron

Adult Dosage: 600–{endash}800 mg/d

Child Dosage: Extended-release capsules not recommended; oral solution, oral suspension, tablets: 3–{endash}9 mg/kg/d

Dosage Forms: Extended-release capsules: 325 mg; oral solution: 45 mg/0.6 mL; oral suspension: 100 mg/5 mL; tablets: 63 mg, 195 mg, 200 mg, 300 mg and 325 mg; chewable tablets: 100 mg

Warnings: Keep out of reach of children; elderly may require increased dosage

Precautions: Post number of poison control center and emergency room; infants are sensitive to iron accumulation

Frequent Side Effects: Abdominal pain, cramping, constipation, diarrhea, nausea/vomiting, allergic reaction, backache or muscle pain, dizziness, chills, fever, headache

Occasional Side Effects: Dark urine, stained teeth, heartburn

Rare Side Effects: Contact irritation

Contraindications: Hemochromatosis, hemosiderosis, anemic conditions

Overdosage: Diarrhea, fever, nausea/vomiting, bluish lips, fingernails, drowsiness, convulsions, tachycardia

Antidotal Therapy: May include syrup of ipecac/emesis, IV sodium bicarbonate, deferoxamine administered slowly IM or IV, exchange transfusion, maintain fluid-electrolyte balance

Disease States: Alcoholism, asthma, liver or kidney problems, peptic ulcer, rheumatoid arthritis

Other Drugs: Acetohydroxamine acid, etidronate, dimercaprol, tetracyclines, zinc supplements, cimetidine

Lab Tests: Bilirubin, calcium, iron concentrations, skeletal imaging, occult blood in stools

Administrative Notes: Warn patients or caregivers of toxic effects of overdose, especially in children; patients should eat lean red meat for additional iron

Ferrous Fumarate/Folic Acid

Trade Name(s): Fumatinic, Hemocyte-F, Ircon-FA

Pregnancy Category: C

Medical Category: Hematinic

Accepted Indications: Anemia

Adult Dosage: 100–{endash}200 mg/d in 3 divided doses

Elderly Dosage: Same as adult dose

Child Dosage: 6 m–{endash}2 y: up to 6 mg/kg/d in 3–{endash}4 divided doses; 2–{endash}12 y: 3 mg/kg/d in 3–{endash}4 divided doses

Infant Dosage: 10–{endash}25 mg/d in 3–{endash}4 divided doses

Dosage Forms: Tablet: 82 mg/0.8 mg; 90 mg/1 mg; and 106.9 mg/1 mg

Ferrous Fumarate/Folic Acid/Multivitamins

Trade Name(s): Hemocyte Plus, Nephro-Vite Rx and FE, Parulex, Theragenerix-H, Theragran Hematinic, Vitafol, Zodeac-100

Pregnancy Category: C

Medical Category: Hematinic

Accepted Indications: Anemia

Adult Dosage: 100–{endash}200 mg/d in 3 divided doses

Elderly Dosage: Same as adult dose

Child Dosage: 6 m–{endash}2y: up to 6 mg/kg/d in 3–{endash}4 divided doses; 2–{endash}12 y: 3 mg/kg/d in 3-4 divided doses

Infant Dosage: 10–{endash}25 mg/d in 3–{endash}4 divided doses

Dosage Forms: Tablets: 60 mg/1 mg, 65 mg/1 mg, 66.7 mg/0.33 mg, 100 mg/ 0.1 mg, 100 mg/1 mg, 106 mg/1 mg

Ferrous Gluconate

Trade Name(s): Fergon, Ferralet, Simron

Chemically Related To: Iron

Pregnancy Category: C

Medical Category: Antianemic

Accepted Indications: Iron deficiency anemia

Mechanism of Action: Iron transported to bone marrow for red blood cell production

Half life: 6 h

Elimination: No elimination system exists

Adult Dosage: Capsules: 325 mg q.i.d. to a maximum of 650 mg q.i.d.; elixir: 300 mg q.i.d. to a maximum of 650 mg q.i.d.; syrup: 300–{endash}600 mg q.i.d.; tablets: 325–{endash}650 mg q.i.d.

Elderly Dosage: May require larger dose

Child Dosage: 8 mg/kg/d

Dosage Forms: Capsules: 86 mg and 325 mg; elixir: 300 mg/5 mL; tablets: 300 mg, 320 mg, and 325 mg

By System: Hemic

Frequent Side Effects: Cramping, soreness, nausea, diarrhea

Occasional Side Effects: Constipation

Contraindications: Hemochromatosis, hemosiderosis

Overdosage: Bluish-colored fingertips, clammy skin, tachycardia, diarrhea

Antidotal Therapy: May include transfer to emergency room, ipecac, deferoxamine

Disease States: Alcoholism, asthma, peptic ulcer, rheumatoid arthritis

Other Drugs: Acetohydroxamic acid, dimercaprol, etidronate, tetracyclines

Lab Tests: Bilirubin, skeletal imaging

Ferrous Sulfate

Trade Name(s): Feosol, Fer-In-Sol, Fero-Gradumet

Chemically Related To: Iron

Pregnancy Category: C

Medical Category: Antianemic

Accepted Indications: Iron deficiency anemia

Mechanism of Action: Increases oxygen transport in the blood

Absorption/Distribution: Absorption increases when iron in body depleted

Half life: 6 h

Elimination: No physiologic system of elimination; recycles itself

Research Notes: Contains 20% elemental ferrous iron

Adult Dosage: 300 mg once or twice daily

Child Dosage: Extended release and enteric-coated forms not recommended; other forms: 5–{endash}30 mg/kg/d 1–{endash}3 times daily

Dosage Forms: Dried capsules: 159 mg and 190 mg; extended-release capsules: 150 mg and 250 mg; elixir: 220 mg/5 mL; oral solution: 75 mg/0.6 mL, 90 mg/5 mL, and 125 mg/mL; tablets: 195 mg, 300 mg and 325 mg; dried tablets: 200 mg; enteric-coated tablets: 300 mg and 325 mg; extended-release tablets: 525 mg; dried extended-release tablets: 160 mg

By System: Systemic

Warnings: Overdose may be very toxic, especially in children; extreme caution in neonates; elderly may require increased dose

Precautions: Post numbers of emergency and poison control centers

Frequent Side Effects: Stomach cramps, constipation, diarrhea, nausea/vomiting

Occasional Side Effects: Dark urine, stained teeth, heartburn

Rare Side Effects: Contact irritation

Contraindications: Hemochromatosis, hemosiderosis, anemia conditions

Overdosage: Diarrhea, fever, nausea/vomiting, bluish lips and fingernails, convulsions, tachycardia, cramping

Antidotal Therapy: Immediate medical treatment, may include syrup of ipecac/gastric lavage, IV sodium bicarbonate, deferoxamine

Disease States: Alcoholism, asthma, hepatitis, peptic ulcer, rheumatoid arthritis

Other Drugs: Acetohydroxamic acid, oral tetracyclines, dimercaprol, etidronate, alcohol

Lab Tests: Glucose oxidase, occult blood in serum, bilirubin, calcium concentrations, skeletal imaging

Administrative Notes: Ferrous sulfate dried extended-release tablets can leave a wax matrix, which is detectable in stool; take iron supplements on an empty stomach if possible

Ferrous Sulfate/Fluoride/Multivitamins

Trade Name(s): Florvite +{plus} Iron; Poly-Vi-Flor with Iron; Vi-Daylin/F +{plus} Iron

Pregnancy Category: C

Medical Category: Hematinic

Accepted Indications: Anemia

Child Dosage: Varies by fluoride content of drinking water

Infant Dosage: Varies by fluoride content of drinking water

Dosage Forms: Chewable tablets: 12 mg/1 mg; tablets: 12 mg/1 mg; drops: 10 mg/1 mg

Ferrous Sulfate/Folic Acid/Multivitamins

Trade Name(s): Fero-Folic-500, Iberet-Folic-500

Pregnancy Category: C

Medical Category: Hematinic

Accepted Indications: Anemia

Adult Dosage: 100–{endash}200 mg in 3 divided doses

Elderly Dosage: Same as adult dose

Child Dosage: 6 m–{endash}2 y: up to 6 mg/kg/d in 3–{endash}4 divided doses; 2–{endash}12 y: 3 mg/kg/d in 3–{endash}4 divided doses

Infant Dosage: 10–{endash}25 mg/d in 3–{endash}4 divided doses

Dosage Forms: Tablets: 105 mg/0.8 mg and 105 mg/0.2 mg

Fibrinolysin

Trade Name(s): Not available as a single agent

Chemically Related To: Protein enzymes; derived from bovine plasma lytic enzyme

Medical Category: Thrombolytic enzyme

Mechanism of Action: Attacks fibrin of blood clots and fibrinous exudates

Research Notes: Acts mainly against denatured protein found in devitalized tissue; ignores healthy protein

Filgrastim

Trade Name(s): Neupogen

Chemically Related To: Biogenic product

Pregnancy Category: C

Medical Category: Hematopoietic stimulant, antineutropenic

Accepted Indications: Chemotherapy-related, AIDS-associated, drug-induced neutropenia; myeloid engraftment; enhancing of progenitor cells

Mechanism of Action: Acts on hematopoietic cells to stimulate proliferation

Absorption/Distribution: Rapidly absorbed

Half life: Elimination 3.5 h

Peak activity: SQ 2–{endash}8 h

Research Notes: Action begins within 5 min of IV administration

Adult Dosage: IV or SQ 5 m{mu}g/kg once daily increased if necessary

Elderly Dosage: Same as adult dose

Child Dosage: Not established

Dosage Forms: Injection: 300 m{mu}g/mL

By System: Hematopoietic stimulant

Warnings: Do not shake medication

Precautions: Call physician at first sign of infection

Frequent Side Effects: Pain in muscles, headache, itching

Occasional Side Effects: Leukocytosis, pain at injection site

Rare Side Effects: Sweet's syndrome, vasculitis

Disease States: Auto-immune disease, inflammatory conditions, sensitivity to Escherichia coli–{endash}derived proteins, sepsis, heart problems

Lab Tests: Blood pressure, uric acid serum concentrations, lactic dehydrogenase

Administrative Notes: Contains no preservatives; should be discarded 6 h after thawing

Finasteride

Trade Name(s): Proscar

Chemically Related To: 4-Azasteroid

Pregnancy Category: X

Medical Category: Antiprostate enlargement

Accepted Indications: Benign prostatic hyperplasia with associated urinary obstruction

Mechanism of Action: Competitive inhibitor of steroid 5a{alpha}-reductase

Absorption/Distribution: High protein binding; crosses blood-brain barrier

Metabolism: Hepatic

Elimination: Renal/fecal

Research Notes: Potential risk to male fetus

Adult Dosage: 5 mg once daily

Dosage Forms: Film-coated tablets: 5 mg

By System: Prostate tissue

Warnings: Not intended for use by women or children

Precautions: Digital rectal examinations should be done; elimination rate decreased in elderly patients

Occasional Side Effects: Impotence, decreased libido

Disease States: Liver problems

Lab Tests: Serum prostate-specific antigen

Administrative Notes: 6–{endash}12 m of therapy may be necessary to see whether response beneficial

Flavoxate Hydrochloride

Trade Name(s): Urispas

Chemically Related To: Unique compound

Pregnancy Category: B

Medical Category: Antispasmodic (urinary tract)

Accepted Indications: Urologic disorders or symptoms, irritative voiding

Mechanism of Action: Relaxant effect on smooth muscle

Absorption/Distribution: Well absorbed

PO: 2 h

Elimination: Renal

Research Notes: If urinary tract infection is present, antibacterial drugs should be initiated

Adult Dosage: 100–{endash}200 mg t.i.d or q.i.d.

Dosage Forms: Tablets 100 mg

By System: Genitourinary system

Warnings: Drowsiness, blurred vision; confusion more likely to occur in elderly

Precautions: Overheating could cause heat stroke; dry mouth possible

Frequent Side Effects: Drowsiness, dry mouth and throat

Occasional Side Effects: Constipation, difficulty voiding, tachycardia, nausea/vomiting, nervousness, increased sweating

Rare Side Effects: Confusion, hypersensitivity, leukopenia, increased intraocular pressure

Overdosage: Anticholinergic effects (clumsiness, dizziness, fever, flushing, respiratory distress)

Antidotal Therapy: May include emesis or gastric lavage, slurry of activated charcoal, short-acting barbiturates, phenathiazines

Disease States: GI tract obstruction, glaucoma, obstructive uropathy, paralytic ileus

Nutrition: If GI upset, take with food

Administrative Notes: Reduce dosage as symptoms improve; if GI upset occurs, take with food

Flecainide Acetate

Trade Name(s): Tambocor

Chemically Related To: Lidocaine

Pregnancy Category: C

Medical Category: Antiarrhythmic

Accepted Indications: Supraventricular arrhythmia, prophylaxis; ventricular arrhythmias

Unaccepted Indications: Less severe arrhythmias, chronic atrial fibrillation

Mechanism of Action: Membrane stabilizing effect; decreases rate of rise of the action potential

Absorption/Distribution: Almost completely absorbed

Half life: 20 h

PO: 3 h

Metabolism: Hepatic

Elimination: Renal, fecal

Research Notes: Has local anesthetic activity

Adult Dosage: 50 mg q12h increased to a maximum of 400 mg/d

Child Dosage: Safety not established

Infant Dosage: Safety not established

Dosage Forms: Tablets: 50 mg, 100 mg, and 150 mg

By System: Cardiovascular

Warnings: Dizziness

Frequent Side Effects: Blurred vision, dizziness

Occasional Side Effects: Arrhythmias, anxiety, depression, constipation, headache, nausea/vomiting, weakness, chest pain, CHF

Rare Side Effects: Hepatic disorder

Contraindications: AV block, bifascicular block without a pacemaker

Antidotal Therapy: May include oxygen, mechanical respiration, circulatory assistance, dopamine, cardiovascular defibrillation

Disease States: Renal impairment, cardiogenic shock, CHF, liver problems, sick sinus syndrome, hyperkalemia, hypokalemia, myocardial infarction

Other Drugs: Digoxin, bone marrow depressants, antiarrhythmics, beta-adrenergic blockers

Lab Tests: EKG changes

Floxuridine

Trade Name(s): FUDR

Pregnancy Category: D

Medical Category: Antineoplastic

Accepted Indications: Regional intra-arterial infusion to treat carcinomas, including breast, hepatic, GI, ovarian, cervical, bladder, renal, and prostatic

Mechanism of Action: Inhibits DNA, RNA synthesis

Absorption/Distribution: Some crossing of blood-brain barrier

Metabolism: Hepatic

Elimination: Respiratory, renal

Adult Dosage: Intra-arterial: 100–{endash}600 m{mu}g/kg/d for 14–{endash}21 d, rest period of 2 w between courses

Elderly Dosage: May require lower dose

Child Dosage: Safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Sterile injection: 500 mg

Warnings: Protect from light

Frequent Side Effects: Aphthous stomatitis, enteritis

Occasional Side Effects: GI ulceration, esophagopharyngitis, glossitis, nausea, vomiting, scaling of hands and feet, loss of appetite, rash, itching, thinning of hair

Rare Side Effects: Leukopenia, infection, hepatotoxicity, thrombocytopenia, anemia, difficulty in walking

Contraindications: Chickenpox, herpes zoster, hepatitis, infection

Disease States: Bone marrow depression, hepatic function impairment, renal function impairment

Other Drugs: Bone marrow depressants, live virus vaccines

Lab Tests: Platelet count, hematocrit

Fluconazole

Trade Name(s): Diflucan

Chemically Related To: Ketoconazole

Pregnancy Category: C

Medical Category: Antifungal

Accepted Indications: Cryptococcal meningitis, candidiasis

Mechanism of Action: Fungistatic, interferes with cytochrome P450 activity

Absorption/Distribution: Well absorbed; widely distributed throughout body and in CSF

Half life: 20–{endash}50 h

PO: 1–{endash}2 h

IV: 1–{endash}2 h (intraperitoneal)

Metabolism: Hepatic

Elimination: Renal

Research Notes: Oral fluconazole is almost completely bioavailable; the daily PO dose is the same as the IV dose

Adult Dosage: 200–{endash}400 mg/d

Elderly Dosage: Same as adult dose

Child Dosage: 3–{endash}6 mg/kg/d

Infant Dosage: Not established

Dosage Forms: Tablets: 50 mg, 100 mg, and 200 mg; injection: 200 mg and 400 mg

Warnings: Reduce dose in patients with renal dysfunction

Occasional Side Effects: GI disturbances (diarrhea, nausea, and vomiting), headache

Rare Side Effects: Exfoliative skin disorders, hepatotoxicity, thrombocytopenia

Disease States: Hepatic and renal function impairment

Other Drugs: Oral antidiabetic agents, cyclosporine, phenytoin, rifampin, warfarin, theophylline

Lab Tests: Bilirubin

Flucytosine

Trade Name(s): Ancobon

Pregnancy Category: C

Medical Category: Systemic antifungal

Accepted Indications: Fungal endocarditis, fungal meningitis, fungal pneumonia, fungal septicemia, fungal urinary tract infections

Mechanism of Action: Interferes with protein synthesis

Absorption/Distribution: Well absorbed from GI tract

Half life: 2.5–{endash}6 h

PO: 1–{endash}2 h

Metabolism: Metabolism not significant

Elimination: Renal

Adult Dosage: 12.5–{endash}37.5 mg/kg q.i.d.

Elderly Dosage: May require lower dose

Child Dosage: Same as adult dose or 375–{endash}562.5 mg/m2 q.i.d.

Infant Dosage: Same as child dose

Dosage Forms: Capsules: 250 mg and 500 mg

Frequent Side Effects: Anemia, hepatitis, thrombocytopenia, leukopenia, hypersensitivity, GI disturbances, nausea, diarrhea

Occasional Side Effects: Confusion, photosensitivity, hallucinations, CNS effects

Contraindications: Bone-marrow depression

Antidotal Therapy: May include gastric lavage, diuresis, hemodialysis

Disease States: Hematologic disease, renal impairment, liver impairment

Other Drugs: Radiation therapy, bone marrow depressants, amphotericin B, cytarabine, blood dyscrasia–{endash}causing medications

Lab Tests: BUN, serum bilirubin, creatinine

Fludarabine

Trade Name(s): Fludara

Pregnancy Category: D

Medical Category: Antineoplastic

Accepted Indications: Chronic lymphocytic leukemia, non-Hodgkin's lymphoma (orphan drug)

Mechanism of Action: Inhibits DNA synthesis

Half life: 10 h (terminal)

Elimination: Renal

Adult Dosage: IV: 25 mg/m2 for 5 d, treatments every 28 d

Elderly Dosage: May require lower dose

Child Dosage: Safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Injection: 50 mg

Warnings: Should be used within 8 h of reconstitution

Frequent Side Effects: Anemia, leukopenia, infection, pain, pneumonia, thrombocytopenia, diarrhea, nausea, vomiting, rash, tiredness

Occasional Side Effects: Edema, neurologic effects, stomatitis, headache, muscle aches, loss of appetite, malaise

Rare Side Effects: Loss of hair, delayed severe neurologic effects, blood in urine, pulmonary edema, pneumonitis, tumor lysis syndrome

Contraindications: Bone marrow depression, chickenpox

Disease States: Gout, herpes zoster, kidney stones, infection

Other Drugs: Probenecid, bone marrow depressants, sulfinpyrazone, pentostatin, live virus vaccines

Lab Tests: Alkaline phosphate, uric acid

Fludrocortisone Acetate

Trade Name(s): Florinef

Chemically Related To: Corticosteroids

Pregnancy Category: C

Medical Category: Corticosteroid, antihypotensive, diagnostic aid (renal tubular acidosis)

Accepted Indications: Chronic or secondary adrenocorticoid insufficiency, congenital adrenogenital syndrome, idiopathic orthostatic hypotension, acidosis in renal tubular disorders

Mechanism of Action: Acts on distal tubule to increase excretion of potassium and hydrogen ions, increase sodium reabsorption, increase protein synthesis

Absorption/Distribution: Well distributed

Half life: 3.5 h

Metabolism: Hepatic, renal

Elimination: Renal

Research Notes: Duration of action is 1–{endash}2 d

Adult Dosage: 100 m{mu}g/d

Elderly Dosage: 50–{endash}100 m{mu}g/d

Child Dosage: 50–{endash}100 m{mu}g/d

Dosage Forms: Tablets: 100 m{mu}g

Precautions: In children, could cause growth suppression

Occasional Side Effects: CHF, dizziness, headache, hypokalemia

Disease States: Heart problems, hypertension, kidney or liver problems, hyperthyroidism, chronic nephritis, osteoporosis

Other Drugs: Digitalis glycosides, lithium, hepatic enzyme inducers, hypokalemia–{endash}causing medications

Lab Tests: Blood pressure, hematocrit, potassium, sodium

Administrative Notes: May need concurrent use of a diuretic

Flunisolide

Trade Name(s): AeroBID (oral inhaler), Nasalide (nasal inhaler)

Chemically Related To: Steroids

Pregnancy Category: C

Medical Category: Adrenocorticoid, antiasthmatic, anti-inflammatory

Accepted Indications: Bronchial asthma (oral inhalation), rhinitis, nasal allergic disorders, nasal polyps

Unaccepted Indications: Acute bronchospasm, nonasthmatic bronchitis

Mechanism of Action: Prevents recruitment and activation of inflammatory cells

Absorption/Distribution: About 0.5 of dose absorbed

Half life: 1.5–{endash}2 h

Peak activity: 1.5–{endash}2 h

Metabolism: Hepatic, pulmonary

Elimination: Renal, fecal

Research Notes: Onset of action, 1–{endash}4 w

Adult Dosage: Oral inhalation: 500 m{mu}g up to 2 mg/d; nasal inhalation: 50 m{mu}g in each nostril b.i.d., maximum daily dose 200 m{mu}g in each nostril

Child Dosage: 4 y and over: same as adult dose

Dosage Forms: Oral inhalation aerosol: 250 m{mu}g per metered spray; nasal inhalation: 25 m{mu}g per metered spray

By System: Respiratory

Warnings: Use caution if surgery is required; rinse mouth after each dose

Frequent Side Effects: Rash, bronchitis, endocrine imbalance, tachycardia, GI upset, dizziness, headache

Occasional Side Effects: Acne, cataracts, edema, depression, mood changes, trouble sleeping, nasal or oral candidiasis

Rare Side Effects: Bronchospasm

Contraindications: Bronchiectasis

Overdosage: Acneiform lesions, Cushing's syndrome, menstrual changes

Antidotal Therapy: May include supportive treatment

Disease States: Heart problems, diabetes mellitus, myasthenia gravis, systemic fungal infections, peptic ulcer, glaucoma

Other Drugs: Antidiabetic agents

Lab Tests: Blood or urine glucose, potassium, cholesterol, uric acid, spermatozoa concentrations, sodium

Fluocinolone Acetonide

Trade Name(s): Bio-Syn, Fluocet, Fluonid, Flurosyn, Synalar, Synemol

Chemically Related To: Dexamethasone

Pregnancy Category: C

Medical Category: Topical steroidal anti-inflammatory, topical corticosteroid

Accepted Indications: Atopic or exfoliative skin disorders, dermatitis, severe eczema, keloids, psoriasis, sarcoidosis, sunburn

Unaccepted Indications: Acne, routine gingivitis

Mechanism of Action: Anti-inflammatory through cytosolic glucocorticoid receptor-mediated action

Absorption/Distribution: Absorbed systemically across stratum corneum

Metabolism: Dermal, hepatic

Research Notes: Medium to high potency corticosteroid

Adult Dosage: Topical, to the skin, b.i.d. to q.i.d.

Elderly Dosage: May require lower dose

Child Dosage: Topical, to the skin, once daily or b.i.d.

Infant Dosage: Same as child dose. In children up to 2 y, 2% strength not recommended.

Dosage Forms: Cream: 0.01%, 0.025%, and 0.2%; ointment: 0.025%; topical solution: 0.01%

By System: Dermal

Warnings: For external use only; do not use in eyes

Precautions: Avoid tight-fitting diapers or plastic pants in area being treated

Occasional Side Effects: Burning sensation, dryness, irritation, scaling, contact dermatitis, purpura, numbness in fingers, skin atrophy

Rare Side Effects: Acne, cataracts, Cushing's syndrome, glaucoma, hypopigmentation, skin maceration, hirsutism

Antidotal Therapy: No specific antidote; may include dilution with fluids

Disease States: Infection at treatment site; pre-existing skin atrophy

Lab Tests: Glucose, eosinophil count, adrenal function as assessed by corticotropin, hypothalamic-pituitary-adrenal axis function

Administrative Notes: Occlusive dressings greatly increase absorption.

Fluocinolone Acetonide/Neomycin Sulfate

Trade Name(s): Neo-Synalar

Medical Category: Topical anti-inflammatory

Accepted Indications: Dermatitis

Adult Dosage: Topical, to the skin, b.i.d. to q.i.d.

Dosage Forms: Cream: 0.25 mg/5 mg/g

Fluocinonide

Trade Name(s): Fluocin, Licon, Lidex

Chemically Related To: Steroids

Pregnancy Category: C

Medical Category: Topical adrenocorticoid, topical steroidal anti-inflammatory

Accepted Indications: Severe inflammatory dermatoses, psoriasis, lichen simplex dermatosis, chronic eczematous dermatoses

Unaccepted Indications: Acne, routine gingivitis

Mechanism of Action: Complexes with cytoplasmic glucocorticoid receptors

Absorption/Distribution: Can be absorbed systemically; absorbed across stratum corneum

Metabolism: Dermal, hepatic

Research Notes: High potency

Adult Dosage: Topically to skin b.i.d. to q.i.d.

Elderly Dosage: Pre-existing skin atrophy may cause problems

Child Dosage: Topically to skin once daily

Infant Dosage: Same as child dose

Dosage Forms: Cream: 0.05%; gel: 0.05%; ointment: 0.05%; topical solution: 0.05%

By System: Dermal

Warnings: For external use only; do not use in or around the eyes

Precautions: Avoid tight-fitting diapers or plastic pants on affected area

Occasional Side Effects: Contact dermatitis, purpura, numbness in fingers, burning, irritation

Rare Side Effects: Acne, cataracts, Cushing's syndrome, gastric ulcer, glaucoma, hirsutism

Antidotal Therapy: No specific antidote; may include dilution with fluids

Disease States: Infection at treatment site; pre-existing skin atrophy

Lab Tests: Glucose tolerance, total eosinophil count, hypothalmic-pituitary-adrenal axis function, ACTH stimulation

Fluorescein Sodium

Trade Name(s): Ak-Fluor, Fluorescite, Fluorets, Fluor-I-Strip, Ful-Glo, Funduscein-10, Funduscein-25, Ophthifluor

Pregnancy Category: C

Medical Category: Ophthalmic diagnostic aid

Accepted Indications: Contact lens fitting; applanation tonometry; detection of corneal stippling, abrasions, lesions, foreign bodies, and contact lens pressure points; lacrimal drainage testing; wound leakage tests; diagnostic aid in ophthalmic angiography; evaluation of iris vasculature; distinction between viable and nonviable tissue; observation of aqueous flow; diagnosis of malignant vs. nonmalignant tumors

Mechanism of Action: Demonstrates defects of corneal epithelium

Adult Dosage: Injection: 500–{endash}750 mg injected rapidly into antecubital vein; ophthalmic solution: 1–{endash}2 drops to detect foreign bodies or corneal abrasions; strips: place moistened strip at fornix close to punctum

Child Dosage: Safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Injection: 10% and 25%; solution: 2%; strips: 0.6 mg, 1 mg, and 9 mg

Warnings: Drops may stain soft contact lenses; discontinue drops if hypersensitivity develops; avoid extravasation with injection

Side/Adverse Effects: Nausea, GI distress, headache, syncope, vomiting, hypotension, cardiac arrest, basilar artery ischemia, hives, itching, bronchospasm, thrombophlebitis, shock, seizures, jaundice, anaphylaxis, dyspnea, pyrexia, dizziness, angioneurotic edema, strong taste, bright yellow urine

Disease States: Allergies, asthma

Administrative Notes: Do not use if solution contains a precipitate

Fluorescein Sodium/Proparacaine

Trade Name(s): Flucaine, Fluoracaine, Fluress, Spectro-Fluorocaine

Medical Category: Diagnostic agent

Accepted Indications: Eye examination

Dosage Forms: Ophthalmic solution: 0.5 %/0.25 %

Fluoride/Polyvitamin

Trade Name(s): Bio-Poly-Flor; Mulvidren-F; Polytabs-F; Poly-Vi-Flor; Soluvite-F; Vi-Daylin/F

Pregnancy Category: C

Medical Category: Vitamin supplement

Accepted Indications: Hypovitaminosis

Dosage Forms: Liquid: 0.25 mg; solution: 0.25 mg/mL, various other strengths; tablet: 0.5 mg

Fluoride/Vitamin A/Vitamin C/Vitamin D

Trade Name(s): ADC with Fluoride; Florvite; Tri-Vi-Flor; Vi-Daylin/F ADC

Pregnancy Category: C

Medical Category: Vitamin supplement

Accepted Indications: Hypovitaminosis

Dosage Forms: Liquid: 0.25 mg; solution: 0.25 mg/1500 IU/35 mg/400 IU; tablet: 1 mg/2500 IU/60 mg/400 IU; other strengths

Fluorometholone

Trade Name(s): Fluor-Op, FML

Chemically Related To: Corticosteroids

Pregnancy Category: C

Medical Category: Ophthalmic adrenocorticoid, ophthalmic anti-inflammatory

Accepted Indications: Ophthalmic non-infective, inflammatory disorders

Unaccepted Indications: Degenerative ocular disorders

Mechanism of Action: Stimulates protein synthesis responsible for anti-inflammatory action

Absorption/Distribution: Absorbed into aqueous humor, cornea, iris, and retina; some systemic absorption

Research Notes: Monitor patient with tonometry and slit-lamp examination

Adult Dosage: Topically to conjunctiva 1–{endash}4 times/d

Dosage Forms: Ointment: 0.1%; suspension: 0.1% and 0.25 %

By System: Ocular

Warnings: If no improvement, see physician

Precautions: Eye examinations should be performed routinely during long-term therapy; protect applicator from contamination

Frequent Side Effects: Blurred vision

Occasional Side Effects: Burning sensation, stinging, or redness of eyes

Rare Side Effects: Secondary eye infections, optic nerve damage, ocular hypertension

Contraindications: Ocular fungal infections, ocular tuberculosis, viral disease, herpes simplex

Overdosage: No serious side effects

Antidotal Therapy: May include dilution with fluids

Disease States: Cataracts, diabetes mellitus, glaucoma, corneal infections

Other Drugs: Antiglaucoma agents, anticholinergics, contact lenses

Administrative Notes: Shake suspension before using

Fluorouracil

Trade Name(s): Adrucil, Efudex, Fluoroplex

Pregnancy Category: D for systemic; X for topical

Medical Category: Antineoplastic; topical antineoplastic

Accepted Indications: Various carcinomas, including breast, prostatic, lung, ovarian, colorectal, hepatic, head and neck, gastric, pancreatic, bladder, cervical, endometrial; pericardial malignant effusions; topical-actinic keratoses

Mechanism of Action: Inhibits DNA, RNA synthesis

Absorption/Distribution: Crosses blood-brain barrier

Half life: Biphasic: 10–{endash}20 min and 20 h

Metabolism: Hepatic

Elimination: Respiratory, renal

Adult Dosage: Varies by indication. Representative doses: injection: IV, 7–{endash}12 mg/kg/d for 4 d, then 7–{endash}10 mg/kg every 3–{endash}4 d; total course of therapy of 2 w. Topical solution or cream: topical once daily or b.i.d. to lesions.

Elderly Dosage: Lower dosage may be required

Child Dosage: Injection: same as adult dose. Topical solution or cream: safety and efficacy not established.

Infant Dosage: Same as child dose

Dosage Forms: Injection: 50 mg/mL. Cream: 1% and 5%. Topical solution: 1%, 2%, and 5%.

Frequent Side Effects: Systemic: diarrhea, leukopenia, esophagopharyngitis, infection, ulcerative stomatitis, dermatitis, loss of appetite, nausea, vomiting, weakness, loss of hair; topical: allergic reaction, inflammatory response, burning at application site, contact dermatitis, photosensitivity, oozing, itching

Occasional Side Effects: GI ulceration, thrombocytopenia, dry skin

Rare Side Effects: Acute cerebellar syndrome, pneumopathy, myocardial ischemia, palmar-plantar erythrodysesthesia syndrome, skin darkening, scaling, watering eyes

Contraindications: Chickenpox, herpes zoster, infection

Disease States: Bone marrow depression, liver impairment, renal function impairment, hemorrhagic ulcerated tissues, pre-existing dermatoses

Other Drugs: Radiation therapy, leucovorin, bone marrow depressants, live virus vaccines

Lab Tests: Hematocrit, leukocyte, platelet

Fluoxetine Hydrochloride

Trade Name(s): Prozac

Chemically Related To: Unique compound

Pregnancy Category: B

Medical Category: Antidepressant, antiobsessional agent

Accepted Indications: Mental depression, obsessive-compulsive disorders

Mechanism of Action: Inhibitor of serotonin

Absorption/Distribution: Well absorbed

Half life: 2–{endash}3 d

PO: 6–{endash}8 h

Metabolism: Hepatic

Elimination: Renal/biliary

Research Notes: Onset of action, 1-4 weeks

Adult Dosage: Up to 80 mg/d

Dosage Forms: Capsules: 20 mg; oral solution: 20 mg/5 mL

By System: CNS subcortical nuclei

Warnings: May cause drowsiness; avoid alcohol

Precautions: Use caution when getting up from a prone position

Frequent Side Effects: Anxiety, diarrhea, drowsiness, headache, insomnia, increased sweating

Occasional Side Effects: Chills, joint pain, hives, respiratory problems, abnormal dreams, chest pain, constipation

Rare Side Effects: Allergic reactions, hypoglycemia, convulsions, swollen glands

Overdosage: Agitation, excitement, nausea/vomiting, convulsions

Antidotal Therapy: May include supportive treatment; maintain body temperature, respiration, and cardiac function; give anticonvulsants

Disease States: Diabetes mellitus, liver and kidney problems, convulsions

Other Drugs: Alcohol, MAO inhibitors, phenothiazines, tricyclic antidepressants, digitalis, diazepam

Fluoxymesterone

Trade Name(s): Halotestin

Chemically Related To: Steroids

Scheduled Class: III

Abuse Potential: High

Pregnancy Category: X

Medical Category: Androgen, antineoplastic, antianemic

Accepted Indications: Androgen deficiency, delayed male puberty, breast carcinoma, anemia

Unaccepted Indications: Enhancement of athletic performance, prevention of postpartum breast engorgement

Mechanism of Action: Stimulates spermatogenesis, male secondary sex characteristics, and sexual maturation at puberty

Absorption/Distribution: Well absorbed; distributed to all body tissues

Half life: 9.2 h

PO: 2 h

Metabolism: Hepatic

Elimination: Renal

Research Notes: Fluoxymesterone is a synthetic androgen

Adult Dosage: 20–{endash}50 mg/d

Elderly Dosage: Use with caution because prostate enlargement may occur

Child Dosage: May delay puberty in males if doses exceed 2.5–{endash}10 mg/d; limit duration of therapy to 4–{endash}6 m

Dosage Forms: Tablets: 2 mg, 5 mg, and 10 mg

By System: Endocrine and testicular

Warnings: In women with metastatic breast cancer, androgen therapy occasionally accelerates the course of the disease

Frequent Side Effects: Menstrual irregularities, amenorrhea, bladder irritability, breast soreness, priapism

Occasional Side Effects: Edema, GI irritation, hepatic dysfunction, hypercalcemia, prostatic carcinoma, prostatic hypertrophy, impotence

Rare Side Effects: Hepatic necrosis, leukopenia

Contraindications: Breast cancer in males, prostate cancer

Overdosage: Priapism

Disease States: Cardiac function impairment, edema, nephritis, diabetes mellitus, renal or hepatic function impairment, hypercalcemia, prostatic hypertrophy

Other Drugs: Anticoagulants, antidiabetic agents, hepatotoxic medications, human growth hormone, cyclosporine, insulin

Lab Tests: Glucose tolerance; fasting blood glucose; clotting factors II, V, VII, and X; hematocrit; hemoglobin

Administrative Notes: Women should be checked for signs of virilization during androgen therapy

Fluphenazine

Trade Name(s): Permitil, Prolixin

Chemically Related To: Piperazine

Pregnancy Category: Not recommended

Medical Category: Antipsychotic, antineuralgia adjunct

Accepted Indications: Psychotic disorders, neurogenic pain

Mechanism of Action: Blocks dopaminergic receptors

PO: 4–{endash}7 d

Metabolism: Hepatic

Elimination: Renal, biliary

Adult Dosage: PO: 2.5–{endash}10 mg/d taken every 6–{endash}8 h, 20 mg/d maximum. Injection: 1.25–{endash}2.5 mg t.i.d. or q.i.d. Decanoate or enanthate injection: up to 100 mg/dose

Elderly Dosage: Lower dosage may be required

Child Dosage: PO: 250–{endash}750 m{mu}g 1–{endash}4 times/d. Injection and enanthate injection: under 12 y: not established; 12 y and over: same as adult dose. Decanoate injection: 5–{endash}12 y: 3.125–{endash}12.5 mg every 1–{endash}3 w; 12 y and over: 6.25–{endash}18.75 mg/w, dose increased to 12.5–{endash}25 mg every 1–{endash}3 w

Infant Dosage: Not established

Dosage Forms: Elixir: 2.5 mg/mL. Tablets: 1 mg, 2.5 mg, 5 mg, and 10 mg. Oral solution: 5 mg/mL. Injection: 2.5 mg/mL. Decanoate injection: 25 mg/mL. Enanthate injection: 25 mg/mL

Warnings: Do not use if discolored

Precautions: Avoid alcohol

Frequent Side Effects: Akathisia, hypotension, tardive dyskinesia, parkinsonian effects, anticholinergic effects, nasal congestion, dizziness, trembling, vomiting, nausea, blurred vision, dystonic effects

Occasional Side Effects: Contact dermatitis, difficult urination, photosensitivity, changes in menstrual period, galactorrhea, weight gain, swelling of breasts, decreased sexual ability

Rare Side Effects: Agranulocytosis, priapism, cholestatic jaundice, neuroleptic malignant syndrome, heat stroke, melanosis

Contraindications: CNS depression, cardiovascular disease

Disease States: Angina pectoris, breast cancer, Reye's syndrome, Parkinson's disease, comatose state, alcoholism, blood dyscrasias, hepatic function impairment

Other Drugs: Epinephrine, levodopa, lithium, alcohol, CNS depression–{endash}producing medications, tricyclic antidepressants, antithyroid agents, hypotension–{endash}causing medications, extrapyramidal reaction–{endash}causing medications, metrizamide

Lab Tests: Blood cell counts, bilirubin, bile

Flurandrenolide

Trade Name(s): Cordran

Chemically Related To: Hydrocortisone

Pregnancy Category: C

Medical Category: Adrenocorticoid (topical), anti-inflammatory

Accepted Indications: Skin disorders, mild dermatitis, psoriasis, pruritus, mild eczema

Unaccepted Indications: Acne, routine gingivitis

Mechanism of Action: Anti-inflammatory through effects mediated by cytosolic glucocorticoid receptors

Absorption/Distribution: Partially absorbed systemically

Metabolism: Dermal, hepatic

Research Notes: Medium-potency topical corticosteroid

Adult Dosage: Topically to skin b.i.d. or t.i.d.

Elderly Dosage: Pre-existing skin atrophy may cause problems

Child Dosage: Topically to skin 0.025% once daily or b.i.d.; 0.05% once daily

Infant Dosage: Same as child dose

Dosage Forms: Cream: 0.025% and 0.05%; lotion: 0.05%; ointment: 0.025% and 0.05%; tape: 4 m{mu}g/cm2

By System: Dermal

Warnings: For external use only; do not use in eye

Precautions: Do not use plastic pants if diaper area being treated

Occasional Side Effects: Burning sensation, dryness, itching, contact dermatitis, numbness in fingers

Rare Side Effects: Acne, Cushing's syndrome, glaucoma, hypopigmentation, skin maceration

Contraindications: Skin infections

Antidotal Therapy: No specific antidote; may include dilution with fluids

Disease States: Infection at treatment site, pre-existing skin atrophy

Lab Tests: Glucose, total eosinophil count, adrenal function

Administrative Notes: Tape dosage form should not be applied to serum-leaking wounds

Flurazepam Hydrochloride

Trade Name(s): Dalmane

Chemically Related To: Benzodiazepines

Scheduled Class: IV

Abuse Potential: Mild

Pregnancy Category: Not given

Medical Category: Sedative-hypnotic

Accepted Indications: Insomnia

Unaccepted Indications: Antianxiety

Mechanism of Action: CNS depressant of subcortical nuclei

Absorption/Distribution: Well absorbed

Half life: Phase 1, 2.3 h; phase 2, up to 100 h

Peak activity: 0.5–{endash}2 h

PO: 0.5–{endash}2 h

Metabolism: Hepatic

Elimination: Renal

Adult Dosage: 15–{endash}30 mg at bedtime

Elderly Dosage: 15 mg at bedtime

Child Dosage: Not recommended

Infant Dosage: Not recommended

Dosage Forms: Capsules: 15 mg and 30 mg

By System: CNS subcortical nuclei

Warnings: Avoid alcohol

Precautions: Do not operate machinery

Frequent Side Effects: Dizziness, lightheadedness, tiredness

Occasional Side Effects: Palpitations, nausea and vomiting, headache, increased thirst, diarrhea

Rare Side Effects: Constipation, clumsiness, blurred vision, false sense of well-being, withdrawal symptoms

Overdosage: Confusion, decreased reflexes, muscle weakness, shakiness, slurred speech

Antidotal Therapy: May include supportive measures, flumazenil

Disease States: Intoxication, coma, shock, epilepsy, glaucoma, pulmonary disease

Other Drugs: Alcohol, CNS depressants, antidepressants, antacids, erythromycin

Lab Tests: NaI uptake, metyrapone

Administrative Notes: Extremely effective on second or third d of use

Flurbiprofen

Trade Name(s): Ansaid

Chemically Related To: Aspirin

Pregnancy Category: B (first trimester); not recommended in second half of pregnancy

Medical Category: Antirheumatic; nonsteroidal anti-inflammatory, antidysmenorrheal

Accepted Indications: Rheumatoid arthritis, osteoarthritis, anklylosing spondylitis, nonrheumatic inflammation, dysmenorrhea

Unaccepted Indications: Reduction of edema after eye surgery

Mechanism of Action: Interferes with prostaglandin synthesis

Absorption/Distribution: Rapid absorption

Half life: 3 h (distribution); 5.7 h (elimination)

Peak activity: 5.2 h

PO: 1.5 h

Elimination: Renal

Research Notes: Drug is toxic to fetus but not teratogenic

Adult Dosage: 200–{endash}300 mg/d in 2–{endash}4 divided doses

Elderly Dosage: Use with caution

Child Dosage: Safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Tablets: 50 mg and 100 mg

By System: CNS

Warnings: Excreted in breast milk

Precautions: Avoid alcohol; sensitivity to the sun possible

Frequent Side Effects: Headache, fluid retention, abdominal cramps, diarrhea, indigestion, nausea

Occasional Side Effects: Forgetfulness, mental depression, hematemesis, allergic rhinitis, blurred vision, tinnitus, tachycardia, flushing, anxiety, dizziness, drowsiness, irritability, trembling, insomnia, extreme weakness, gas, constipation, decreased appetite, vomiting

Rare Side Effects: Chest pain, nosebleed, arrhythmia, CHF, increased blood pressure, confusion, meningitis, dermatitis, bitter taste, muscle weakness, Stevens-Johnson syndrome, toxic epidermal necrolysis, esophagitis, gastritis, GI ulceration, vaginal bleeding, blood in urine, cystitis, incontinence, anemia, bruising, eosinophilia, leukopenia, thrombocytopenia, jaundice, anaphylaxis, angioedema, troubled breathing, fever, lymphadenopathy, corneal opacity, conjunctivitis, dry eyes, retinal hemorrhage, stomatitis, decreased hearing, hyperkalemia, interstitial nephritis, renal impairment, increased sweating, pounding heartbeat, photosensitivity

Contraindications: Blood disorders, bone marrow depression, cardiac disease, peptic ulcer

Overdosage: Listlessness, GI distress, convulsions, acute renal failure, coma

Antidotal Therapy: May include emesis/gastric lavage; no syrup of ipecac; activated charcoal, antacids

Disease States: Bleeding disorders, sensitivity to aspirin or NSAIDs, nasal polyps, GI inflammatory disease, renal function impairment, stomatitis, hypertension

Other Drugs: Anticoagulants, heparin, platelet-aggregation inhibitors, epinephrine, acetaminophen, alcohol, corticosteroids, corticotropin, potassium supplements, thrombolytic agents, triamterene, aspirin, cefamandole, cefoperazone, cefotetan, plicamycin, valproic acid, cyclosporine

Administrative Notes: Take with full glass of water. Maximal listed dose is for short-term therapy only and not meant to be an indication of maintenance dose

Flurbiprofen Sodium (Ophthalmic)

Trade Name(s): Ocufen

Chemically Related To: Aspirin

Pregnancy Category: C

Medical Category: Prostaglandin synthesis inhibitor, anti-inflammatory, miosis inhibitor

Accepted Indications: Ocular inflammation, miosis, cystoid macular edema

Mechanism of Action: Interferes with prostaglandin synthesis

Absorption/Distribution: Penetrates the cornea, significant systemic absorption may occur

Metabolism: Hepatic

Elimination: Renal

Adult Dosage: Topical to the conjunctiva, miosis inhibitor: 1 drop every 30 min beginning 2 h prior to surgery for a total of 4 drops; anti-inflammatory: 1 drop q4h

Child Dosage: Safety not established

Infant Dosage: Safety not established

Dosage Forms: Ophthalmic solution 0.03%

By System: Ocular

Frequent Side Effects: Ocular irritation

Rare Side Effects: Bleeding in eye, redness in eye

Disease States: Epithelia herpes simplex keratitis, bleeding disorders, sensitivity to aspirin or NSAIDs

Other Drugs: Acetylcholine chloride, carbachol, anticoagulants, heparin, platelet aggregation inhibitors, epinephrine

Flutamide

Trade Name(s): Eulexin

Chemically Related To: Androgens

Pregnancy Category: D

Medical Category: Antineoplastic

Accepted Indications: Prostatic carcinoma

Mechanism of Action: Inhibition of androgen uptake; interference with testosterone activity

Absorption/Distribution: Rapidly and completely absorbed

Half life: 6 h

PO: 2 h

Metabolism: Hepatic

Elimination: Renal/fecal

Research Notes: Used in combination with LH releasing hormone analogues such as leuprolide

Adult Dosage: 125–{endash}750 mg/d in 3 divided doses

Elderly Dosage: Half-life increased

Dosage Forms: Capsules: 125 mg

Warnings: Reduces sperm count

Precautions: Continue with medication despite side effects; check with physician if vomiting occurs shortly after dose is taken

Frequent Side Effects: Impotence or decrease in libido; diarrhea; hot flashes; nausea or vomiting

Occasional Side Effects: Gynecomastia, loss of appetite, numbness or tingling of hands or feet, swelling of feet or lower legs

Rare Side Effects: Hepatitis

Antidotal Therapy: May include supportive treatment

Lab Tests: Plasma estradiol and testosterone, serum bilirubin, serum creatinine

Administrative Notes: Therapy should begin simultaneously with LH releasing hormone analogue therapy

Fluticasone Propionate

Trade Name(s): Cutivate

Pregnancy Category: C

Medical Category: Topical corticosteroid, topical steroidal anti-inflammatory

Accepted Indications: Skin disorders (dermatitis, pruritus)

Unaccepted Indications: Acne, rosacea

Metabolism: Skin, hepatic

Adult Dosage: Topical, to the skin, b.i.d.

Elderly Dosage: Lower dose may be required

Child Dosage: Not established

Infant Dosage: Not established

Dosage Forms: Cream: 0.05%. Ointment: 0.005%.

Warnings: Do not use in or around eyes

Occasional Side Effects: Contact dermatitis, folliculitis, furunculosis, hyperesthesia, numbness in fingers, skin atrophy, secondary skin infection

Rare Side Effects: Acneiform eruptions, Cushing's syndrome, perioral dermatitis, edema, gastric ulcer, glaucoma, hirsutism, hypopigmentation, skin maceration, unusual loss of hair

Disease States: Diabetes, skin atrophy, glaucoma, tuberculosis, infection at treatment site

Lab Tests: Eosinophil count, glucose

Folic Acid

Trade Name(s): Folvite

Pregnancy Category: A

Medical Category: Nutritional supplement; diagnostic aid (folate deficiency)

Accepted Indications: Folic acid deficiency (treatment and diagnosis)

Unaccepted Indications: Mental disorders, aplastic anemia

Mechanism of Action: Synthesis of purine, metabolism of amino acids, and histidine

PO: 0.5–{endash}1 h

Metabolism: Hepatic

Elimination: Renal

Research Notes: Large proportion stored in liver

Adult Dosage: 100 m{mu}g/d up to 500 m{mu}g; 3–{endash}15 mg when used in tropical sprue

Child Dosage: Supplement 100 m{mu}g/d up to 500 m{mu}g/d

Infant Dosage: Folic acid injection that contains benzyl alcohol as a preservative should not be used

Dosage Forms: Tablets: 100 m{mu}g, 400 m{mu}g, 800 m{mu}g, and 1 mg; injection: 5 mg/mL

Warnings: Megadoses not recommended without physician's approval

Precautions: Use parenteral administration only when oral administration not acceptable

Rare Side Effects: Erythema, fever, itching

Disease States: Pernicious anemia

Other Drugs: Antibiotics, zinc supplements, estrogens, analgesics, methotrexate, sulfonamides, anticonvulsants

Lab Tests: Vitamin B12 concentrations in blood

Administrative Notes: Follow proper diet, obtaining folic acid from appropriate food sources.

Formaldehyde

Trade Name(s): Formalin, Formalyde-10, Forma-Ray, LazerFormalyde

Chemically Related To: Aldehydes

Medical Category: Drying agent, dermatologic agent, anti-infective, skin/mucous membrane agent

Accepted Indications: Pre- and postsurgical removal of warts drying agent; hyperhidrosis and bromidrosis

Mechanism of Action: Destroys microorganisms, drying agent

Research Notes: Perform skin sensitivity test

Adult Dosage: Apply to affected area once daily

Dosage Forms: Aerosol spray: 10%; solution: 7.4%, 8%, and 10%

By System: Dermal

Warnings: For external use only; check skin for sensitivity

Precautions: Keep out of reach of children; avoid contact with eyes and mucous membranes

Side/Adverse Effects: Some redness or irritation

Foscarnet Sodium

Trade Name(s): Foscavir

Pregnancy Category: C

Medical Category: Systemic antiviral

Accepted Indications: Cytomegalovirus retinitis, herpes simplex, varicella-zoster

Unaccepted Indications: Bacteria, mycoplasma

Mechanism of Action: Inhibits viral replication by blocking DNA polymerase

Absorption/Distribution: Poorly absorbed after oral administration

Half life: 0.4–{endash}1.4 h (distribution), 3.3–{endash}6.8 h (elimination)

IV: End of infusion

Metabolism: Not metabolized

Elimination: Renal

Adult Dosage: IV: 60 mg/kg t.i.d. for 14–{endash}21 d initially; maintenance, IV, 90–{endash}120 mg/kg once daily

Elderly Dosage: May require lower dose

Child Dosage: Same as adult dose

Dosage Forms: Injection: 6000 mg/250 mL and 12,000 mg/500 mL

Frequent Side Effects: Nephrotoxicity, GI disturbances, neurotoxicity

Occasional Side Effects: Anemia, granulocytopenia, phlebitis

Rare Side Effects: Penile ulcerations, mouth sores

Contraindications: Dehydration

Disease States: Anemia, kidney impairment

Other Drugs: Pentamidine, zidovudine, nephrotoxic medications

Lab Tests: Serum phosphate, serum calcium

Fosinopril Sodium

Trade Name(s): Monopril

Chemically Related To: ACE inhibitors

Pregnancy Category: C in first trimester, D in second and third

Medical Category: Antihypertensive

Accepted Indications: Hypertension

Unaccepted Indications: CHF

Mechanism of Action: Inhibition of ACE enzyme

Absorption/Distribution: 36% absorbed slowly from GI tract

Half life: 11.5 h (fosinoprilat, active metabolite)

Peak activity: 2–{endash}6 h

Metabolism: Hepatic

Elimination: Renal, fecal

Research Notes: Onset of action, 1 h; duration of action, 24 h

Adult Dosage: Initial: 10 mg once daily; maintenance: 20–{endash}40 mg once daily up to 80 mg maximum/d

Elderly Dosage: May require lower dose

Child Dosage: Safety and efficacy not established

Infant Dosage: Safety and efficacy not established

Dosage Forms: Tablets: 10 mg and 20 mg

Warnings: Excreted in breast milk

Frequent Side Effects: Dry cough, headache

Occasional Side Effects: Hypotension, rash, fever, joint pain, itching, diarrhea, dysgeusia, fatigue, nausea

Rare Side Effects: Angioedema, chest pain, hyperkalemia, neutropenia, agranulocytosis, pancreatitis

Contraindications: Angioedema, hyperkalemia, renal artery stenosis, renal transplantation

Overdosage: Severe hypotension

Antidotal Therapy: May include volume expansion

Other Drugs: Alcohol, potassium sparing diuretics, potassium supplements, low-salt milk, potassium–{endash}containing medications, salt substitutes

Lab Tests: Blood pressure, leukocyte count, urinary protein, BUN, digoxin levels

Furosemide

Trade Name(s): Lasix, Myrosemide

Chemically Related To: Sulfonamides

Pregnancy Category: C

Medical Category: Diuretic, antihypertensive, antihypercalcemic

Accepted Indications: Edema, hypertension

Mechanism of Action: Inhibits reabsorption of Cl- and water in ascending loop of Henle

Half life: 0.5–{endash}1 h

PO: 2.5 h

IV: 0.5 h

Metabolism: Hepatic

Elimination: 88% renal; 12% biliary/fecal

Adult Dosage: 20–{endash}600 mg/d

Child Dosage: 2–{endash}6 mg/kg/d

Infant Dosage: Same as child, but the dosing interval should be extended because of prolonged half–{endash}life in neonates

Dosage Forms: Oral solution: 8 mg/mL and 10 mg/mL; tablets: 20 mg, 40 mg, and 80 mg: injection: 10 mg/mL

By System: Cardiovascular and renal

Warnings: May increase blood glucose levels in diabetic patients; use caution if any kind of surgery, including dental surgery, is required; elderly patients may be more sensitive to the drug's effects

Precautions: Skin photosensitivity possible

Frequent Side Effects: Orthostatic hypotension

Occasional Side Effects: Electrolyte imbalance, blurred vision, diarrhea, headache, pain at site of injection, stomach cramps

Rare Side Effects: Rashes, gout, hepatic dysfunction, leukopenia, ototoxicity, pancreatitis, thrombocytopenia, hyperglycemia

Disease States: Severe renal function impairment, diabetes mellitus, hyperuricemia, acute myocardial infarction, pancreatitis, hearing impairment

Other Drugs: Hypotensive medication, anticoagulants, oral antidiabetic agents, chloral hydrate, probenecid, ototoxic medications

Lab Tests: Blood glucose concentrations, BUN, calcium chloride, magnesium, potassium and sodium serum concentrations

Administrative Notes: IV infusion should not exceed 4 mg/min

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