Description
Hydrochlorothiazide belongs to the group of medications called diuretics. It is also an antihypertensive. It is used to decrease fluid retention (edema) caused by congestive heart failure, certain kidney or liver problems, and medications such as corticosteroids (e.g., prednisone) and estrogen. It is also used to lower high blood pressure and treat toxemia (suddenly occurring high blood pressure and fluid retention) in pregnancy. Hydrochlorothiazide works by making the body lose excess water and salt.
To reduce fluid retention (edema), the usual recommended adult dose of hydrochlorothiazide is 25 mg to 200 mg daily, given in 1 to 2 divided doses. Some people may only need to take this medication every other day, or for 3 to 5 days per week, as directed by their doctor. For infants and children, the dose is based on body weight and is given in 2 divided doses.
When treating toxemia of pregnancy, the recommended dose is usually 100 mg taken every day; however doses may range from 100 mg every day to 100 mg every 4 days. If needed, the dose may be increased to 200 mg daily for severe toxemia given in 2 divided doses and for short periods of time. For the treatment of high blood pressure, the usual recommended starting adult dose of hydrochlorothiazide is 12.5 mg to 100 mg daily.
