A diuretic is a substance which makes your body increase its production of waste fluids, with the result that you need to urinate more often than usual. Alcohol acts as a diuretic, making you even more dehydrated. Diuretic is also an adjective. Many remedies effective in joint disease are primarily diuretic. a substance that increases the flow of urine (diureticus, from diourein ). Any drug that increases the flow of urine from the body. Diuretics promote removal of excess water, salts, poisons, and metabolic wastes to help relieve edema, kidney failure, or glaucoma. Most types act by decreasing the amount of fluid that is reabsorbed by the kidney's nephrons and passed back into the blood. Diuretics that allow the body to retain potassium are used for patients with hypertension or congestive heart failure
A drug that lowers blood pressure by stimulating fluid loss; promotes urine production