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  • Title: Plasma lipid profiles and antihypertensive agents: effects of lisinopril, enalapril, nitrendipine, hydralazine, and hydrochlorothiazide.
    Author: Williams LL, Lopez LM, Thorman AD, Quay GP, Stein GH, Mehta JL.
    Journal: Drug Intell Clin Pharm; 1988; 22(7-8):546-50. PubMed ID: 2843341.
    Abstract:
    Previous studies have documented potentially adverse effects of diuretics and beta-blocking agents on plasma lipid profiles. This study was designed to establish the effects on lipid profiles of the angiotensin-converting enzyme inhibitors lisinopril and enalapril, alone and in combination with hydrochlorothiazide (HCTZ), the calcium-channel blocker nitrendipine, HCTZ, and hydralazine. After a two-week, single-blind, placebo phase, 77 patients with essential hypertension were given active agent as monotherapy in a double-blind fashion for 8-20 weeks. The dose of each agent was titrated to achieve diastolic blood pressure less than 90 mm Hg. At the end of placebo and treatment phases, plasma was analyzed for triglycerides, total cholesterol, and high-(HDL), and low-density lipoprotein (LDL) cholesterol. Overall, few changes in lipid contents were noted. Total cholesterol decreased during therapy with hydralazine but increased in patients receiving the combination of lisinopril and HCTZ. HDL cholesterol was depressed in those taking HCTZ alone and in combination with lisinopril. LDL cholesterol was lowered during therapy with hydralazine but was otherwise unaffected by all other agents. None of the agents evaluated significantly affected triglyceride concentrations. Thus, monotherapy with lisinopril, enalapril, and nitrendipine do not affect plasma lipid concentrations. Hydralazine lowers total and LDL cholesterol. If these findings are confirmed in trials with larger numbers of patients, these effects on lipid profiles may influence choice of agent in the therapy of essential hypertension.
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