Chlorthalidone

Generic name: chlorthalidone [ klor-THAL-i-done ]
Brand names: Hygroton, Thalitone
Dosage form: oral tablet (25 mg; 50 mg)
Drug class:Thiazide diuretics

Medically reviewed by Drugs.com on Oct 1, 2021. Written by Cerner Multum.

What is chlorthalidone?

Chlorthalidone is a thiazide diuretic (water pill) that helps prevent your body from absorbing too much salt, which can cause fluid retention.

Chlorthalidone 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.

Chlorthalidone is also used to treat high blood pressure (hypertension).

Chlorthalidone may also be used for purposes not listed in this medication guide.

Warnings

You should not use chlorthalidone if you are unable to urinate, or if you are allergic to sulfa drugs.

Before taking this medicine

You should not use chlorthalidone if you are allergic to it, or if:

• you are unable to urinate; or

• you are allergic to sulfa drugs.

Tell your doctor if you have ever had:

• kidney disease;

• heart failure;

• gout;

• high cholesterol or triglycerides;

• diabetes; or

• if you are on a low-salt diet.

Tell your doctor if you are pregnant or plan to become pregnant. Taking chlo...