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Enalapril/Enalaprilat (Vasotec)

Category:

  • Antihypertensive

Description:

  • ACE inhibitor

Indications:

  • Hypertension

  • Heart failure

  • Left ventricular dysfunction (clinically stable asymptomatic patients, decreases rate of overt heart failure)

Precautions:

  • Pregnancy category C (1st trimester), category D (2nd and 3rd trimesters); ACE inhibitors can cause fetal and neonatal morbidity and death when administered to pregnant women

  • Impaired renal function, dialysis patients, hypovolemia, diuretic therapy

  • Collagen-vascular diseases, CHF, elderly, bilateral renal artery stenosis

Adverse Reactions (Side Effects):

  • CNS: anxiety, dizziness, fatigue, headache, insomnia, paresthesia

  • CV: angina, hypotension, palpitations, postural hypotension, syncope

  • GI: abdominal pain, constipation, melena, nausea, vomiting

  • GU: decreased libido, impotence, increased BUN/creatinine, UTI

  • METAB: hyperkalemia, hyponatremia

  • MS: arthralgia, arthritis, myalgia

  • RESP: asthma, bronchitis, cough, dyspnea, sinusitis

  • SKIN: angioedema, flushing, rash, sweating

 

 

 

Dosage:

Administered orally, intravenously

  • Adult:   PO 2.5-5mg daily, increase as needed, usually 10-40mg daily divided 1-2 times; IV (enalaprilat) 0.625-1.25 mg/dose given over 5 minutes every 6 hours; dosing adjustment in renal impairment: CrCl 10-50 ml/min, 75%-100% of normal dose; CrCl <10 ml/min, 50% of normal dose

  • Child:   PO 0.1 mg/kg/day initially, increase as needed over 2 weeks to max of 0.5 mg/kg/day; IV (enalaprilat) 5-10 mcg/kg/dose every 8-24 hours

Drug interactions:

  • Allopurinal: predisposition to hypersensitivity reactions to ACE inhibitors

  •  Aspirin, NSAIDS: inhibition of the antihypertensive response to Ace inhibitors

  •  Prazosin, terazosin, doxazosin: exaggerated first-dose hypotensive response to a-blockers

 

The information contained here is an abbreviated summary. For more detailed and complete information, consult the manufacturer's product information sheets or standard textbooks. Source: Operational Medicine 2001,  Health Care in Military Settings, NAVMED P-5139, May 1, 2001, Bureau of Medicine and Surgery, Department of the Navy, 2300 E Street NW, Washington, D.C., 20372-5300

OB-GYN 101: Introductory Obstetrics & Gynecology
© 2003, 2004, 2005, 2008 Medical Education Division, Brookside Associates, Ltd.
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