Calcium channel blockers
Medical term · C
A class of drugs that lowers blood pressure, slows the heart rate, and decreases the heart's need for oxygen by blocking the movement of calcium into the heart and the muscle cells surrounding blood vessels.
Related terms
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Blood pressureThe force blood exerts against the walls of the arteries. Optimal blood pressure is less than 120/80 mm Hg.
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Blood vesselsHollow tubes that transport blood throughout the body; includes arteries, veins, and capillaries.
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Heart rateThe number of times the heart contracts in a minute, normally 60–100 times.
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CalciumA mineral that the body needs for many vital functions, including bone formation, regulation of heart rate and blood pressure, and muscle contraction.