Angiotensin-II receptor blocker/ARBs and calcium channel blocker combinations are used to treat hypertension and lower blood pressure. ARBs block the action of angiotensin-II, enlarging blood vessels and reducing blood pressure. Calcium channel blockers relax and widen blood vessels affecting the muscle cells in the walls of the arteries, improving blood flow and relieving hypertension. Commonly prescribed angiotensin-II receptor blocker/ARBs and calcium channel blocker combinations include Azor (amlodipine, olmesartan) and Exforge (amlodipine, valsartan).
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