Calcium channel blockers do not change the amount of calcium in your blood or bones

they make the heart more efficient at pumping blood throughout the body

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This helps increase the supply of oxygen to your heart

Exforge HCT 5/160/12.5mg Tablets 28's on-sale Calcium channel blockers do notExforge HCT contains a combination of amlodipine, hydrochlorothiazide and valsartan. Amlodipine is a calcium channel blocker that relaxes (widens) blood vessels and improves blood flow. Hydrochlorothiazide is a thiazide diuretic (water pill) that helps prevent your body from absorbing too much salt, which can cause fluid retention. Valsartan is an angiotensin II receptor antagonist that keeps blood vessels from narrowing, which lowers blood pressure