the effect on hypertension of hydrochlorothiazide 100 mg daily plus timolol 20-60 mg daily versus hydrochlorothiazide plus placebo and of hydrochlorothiazide plus timolol plus hydralazine 40-200 mg daily versus hydrochlorothiazide plus placebo plus hydralazine was evaluated in a double-blind , randomized , crossover study in 38 patients with hypertension .
C0020261
hydrochlorothiazide
C0020538
hypertension