Effects of antihypertensive drugs on lipid metabolism.

Despite the well-established correlation between coronary heart disease (CHD) and hypertension, conventional antihypertensive therapy with diuretics and beta-adrenergic blockers has failed to provide protection against CHD. A possible explanation for this failure is the unfavorable effect such drugs have on lipid metabolism. To compare the lipid profiles of commonly used antihypertensive drugs, a survey was made of selected studies from the literature. Diuretics and selective and nonselective beta-blockers were found to have adverse effects on blood lipids. Beta-blockers with intrinsic sympathomimetic activity, labetalol, methyldopa, and calcium channel blockers are lipid neutral, whereas alpha-adrenergic blockers seemed to have a favorable effect on lipid metabolism. Controlled clinical trials with drugs that have no adverse effects on lipid metabolism are needed to establish the long-term clinical importance of such agents.