Hydrochlorothiazide 12.5 mg Capsules

Hydrochlorothiazide (HCTZ) is a diuretic often prescribed for the treatment of high blood pressure and fluid retention. It comes in many different forms and strengths, including 12.5 mg capsules, 25 mg tablets, and 50 mg tablets.

The recommended starting hydrochlorothiazide dosage for treating high blood pressure in most adults is 25 mg once daily. Based on the initial blood pressure response and/or side effects of hydrochlorothiazide, the dosage may be increased up to 50 mg per day.

For the treatment of fluid retention (edema), dosing can vary between 25 mg and 100 mg daily (taken as a single dose or divided and taken more frequently).

Usually, the dose of hydrochlorothiazide for infants and children is 0.5 mg to 1 mg per pound of body weight per day. The dose should not exceed 37.5 mg (three 12.5 mg hydrochlorothiazide capsules) total per day for infants up to two years old or 100 mg per day for children two to twelve years old.

(Click Hydrochlorothiazide Dosing for more information on when and how to take this medication and to find out what your healthcare provider will consider before making dosing recommendations for your situation.)