vasodilator

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vasodilator (vay-zoh-dy-lay-ter) n. a drug that causes widening of the blood vessels and therefore an increase in blood flow. Vasodilators are used to lower blood pressure in cases of hypertension. coronary v. a drug, such as glyceryl trinitrate, that increases the blood flow through the heart and is used to relieve and prevent angina. peripheral v. a drug, such as nifedipine, that affects blood flow to the limbs and is used to treat conditions due to poor circulation.

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