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  • Title: Comparison and additivity of nitrendipine and hydrochlorothiazide in systemic hypertension.
    Author: Massie BM, Tubau JF, Szlachcic J, Vollmer C.
    Journal: Am J Cardiol; 1986 Sep 30; 58(8):16D-19D. PubMed ID: 3532749.
    Abstract:
    Calcium channel blockers are highly effective antihypertensive agents and provide a good alternative to other medications used as initial or monotherapy. Although the calcium channel blockers act as peripheral vasodilators, they are unique among this group of drugs in lowering blood pressure in a sustained manner; several compensatory mechanisms are inhibited by virtue of either direct or indirect effects of these agents. In recent years, hypertension has generally been treated with a step-care approach, the limitations of which are now becoming apparent. Today, 4 classes of agents are effective and well tolerated as single therapy and might therefore be considered as first-line drug therapy: diuretics, beta blockers, converting enzyme inhibitors and calcium channel blockers. Preliminary results from an ongoing double-blind randomized trial comparing nitrendipine (a calcium channel blocker) and hydrochlorothiazide (a diuretic) in mild to moderate hypertension will be presented. Results from 63 patients showed the 2 agents to be equivalent in antihypertensive effects and in frequency of adverse reactions. Other data indicate that when nitrendipine and hydrochlorothiazide were combined, a further decrease in blood pressure was observed. Patient characteristics affecting drug choice and clinical situations in which calcium channel blockers can be used most effectively can now often be delineated.
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