Triamterene 37.5mg, hydrochlorothiazide 25mg; caps. Triamterene exerts its diuretic effect on the distal renal tubule to inhibit the reabsorption of sodium in exchange for potassium and hydrogen ions.

Bolland and colleagues previously conducted a 2-year controlled, blind study in postmenopausal women who received hydrochlorothiazide 50 mg daily or placebo. There were significant, sustained ...