in a randomized cross-over trial the combination labetalol/hydrochlorothiazide was compared with the combination of propranolol/hydralazine/hydrochlorothiazide in 34 uncomplicated hypertensive patients , who were not satisfactorily controlled with hydrochlorothiazide 50 mg alone .
C0020261
hydrochlorothiazide
C0717829
propranolol