to study the effect of a combination of amiloride , 5 mg , and hydrochlorothiazide , 50 mg ( moduretic ) , on plasma and skeletal muscle electrolytes in patients on long-term diuretic therapy ( greater than 1 year ) for arterial hypertension and/or congestive heart failure , 58 patients were recruited .
C0020261
hydrochlorothiazide
C0018802
congestive heart failure