Basic & clinical pharmacology. Any patient with a high plasma renin level is vulnerable to first-dose hypotension, but this effect is transient and unpredictable.Cough occurs in 5 to 20 percent of patients. Mancini GB, et al. Perez A, Brosh D, Davies R, Poole-Wilson PA, Most clinicians discontinue potassium and potassium-sparing diuretics when starting patients on ACE inhibitor therapy. Maynard C, Taking diuretics. Multicentre randomized controlled trial of angiotensin-converting enzyme inhibitor/angiotensin receptor blocker withdrawal in advanced renal disease: the STOP-ACEi trial. et al. Liu PP. Wondering if that’s possible?ACE-Inhibitors (Angiotensin converting enzyme inhibitors) are a very commonly used class of medications and are utilized for a variety of indications including high blood pressure, heart failure and heart attack prophylaxis. Use of enalapril to attenuate decline in renal function in normotensive, normoalbuminuric patients with type 2 diabetes mellitus. Gerstein H, Applegate WB, Aortic stenosis and hypertropic cardiomyopathies are considered relative contraindications because of the risk of hypotension from fixed outlet obstruction.Angioneurotic edema, which occurs in 0.1 to 0.2 percent of patients, usually develops within the first week of therapy but can occur at any time. If a choice is possible, physicians should use those agents that have been proved by clinical trials to reduce morbidity and mortality for the condition being treated and work toward target dosages or clinical end points Food decreases absorption, but blood levels do not correlate with blood pressure responseRange: 10 to 40 mg once daily or in two divided dosesStart: 5 mg daily for two days, then 10 mg daily for six weeks, then re-evaluateTarget: 7.5 to 30 mg in one dose or two divided doses one hour before mealsStart: 5 mg twice daily, titrate weekly to 20 to 40 mg in divided dosesPatients with impaired liver function may have elevated plasma levelsTarget: 2.5 to 20 mg daily in one dose or two divided doseFood decreases absorption, but blood levels do not correlate with blood pressure responseRange: 10 to 40 mg once daily or in two divided dosesStart: 5 mg daily for two days, then 10 mg daily for six weeks, then re-evaluateTarget: 7.5 to 30 mg in one dose or two divided doses one hour before mealsStart: 5 mg twice daily, titrate weekly to 20 to 40 mg in divided dosesPatients with impaired liver function may have elevated plasma levelsTarget: 2.5 to 20 mg daily in one dose or two divided doseIn patients with renal insufficiency, no creatinine level is an absolute contraindication to ACE inhibitor therapy. Macaya C, A recent meta-analysis of ARBs in heart failure concluded that ACE inhibitors are superior to ARBs in reducing hospitalization and all-cause mortality. ACE inhibitors are generally well tolerated and have few contraindications. In fact, data suggests that over 2% of individuals on ACE-Inhibitor therapy will experience a dry, unproductive cough. An increase of 20 percent in the serum creatinine level is not uncommon and is not a cause for discontinuing the medication. Captopril (Capoten) and enalapril (Vasotec) are off-patent, which makes them more economical. They work by stopping conversion of angiotensin I into angiotensin II, a potent vasoconstrictor. This reduces pressure on the blood vessel walls and can also work to decrease inflammation as well.While beneficial for many, ACE-Inhibitors are associated with a few key side effects including:The side effect of a cough is one of the most common complaints regarding ACE-Inhibitor therapy. Dr. Bicket received her medical degree from Wake Forest University School of Medicine, Bowman Gray Campus, Winston-Salem, N.C., where she also completed a residency in family practice. St. Louis: Facts and Comparisons, 2000, and Physicians' desk reference, 2001. Goodman & Gilman's The pharmacological basis of therapeutics. Angiotensin II contributes to endothelial dysfunction, altered renal hemodynamics, and vascular and cardiac hypertrophy. On behalf of the membership of the advisory council to improve outcomes nationwide in heart failure. They do have Losartan however. Zannad F, Stamford, Conn.: Appleton & Lange, 2001:172–4.Drug facts and comparisons. American College of Cardiology. et al. The underlying problem should be corrected, starting with a low dosage and titrating slowly. Therapeutic benefits of ACE inhibitors and other antihypertensive drugs in patients with type 2 diabetes. Retrieved online August 2001.Jackson EK, Garrison JC. 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