Chlorothiazide is a thiazide diuretic (water pill) that helps prevent your body from absorbing too much salt, which can cause fluid retention. Chlorothiazide treats fluid retention (edema) in people with congestive heart failure, cirrhosis of the liver, or kidney disorders, or edema caused by taking steroids or estrogen. This medication is also used to treat high blood pressure (hypertension). Chlorothiazide may also be used for other purposes not listed in this medication guide.
Diuril is a diuretic which is a type of medication used to address conditions of water retention in the body, especially water retained due to medical conditions or use of certain medicines. Diuril is a thiazide diuretic that works by stimulating the kidneys to eliminate more fluids and salts from the body. This action tends to lower blood pressure, and low blood pressure helps prevent heart diseases, cardiac conditions, kidney disease and other serious conditions that may harm the body. Diuril is also an antihypertensive as it helps reduce blood pressure.