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NCI Dictionary of Cancer Terms

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diuretic  listen  (DY-yoo-REH-tik)

  A type of drug that causes the kidneys to make more urine. Diuretics help the body get rid of extra fluid and salt. They are used to treat high blood pressure, edema (extra fluid in the tissues), and other conditions. There are many different types of diuretics. They are sometimes called water pills.