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Diuretic

A diuretic is a substance that removes water from the body by promoting urine formation and the loss of salt (sodium).

Caffeine and alcohol are common diuretics.

Diuretic medicines include furosemide, hydrochlorothiazide, and spironolactone. These medicines may be used to help treat conditions such as heart failure, hypertension, or liver or kidney disease.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

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