the average final dose of amlodipine was 7.4 mg/day. In the hydrochlorothiazide group, 49 (52%) patients received 50 mg/day and 46 (48%) received 100 mg/day; the average final dose of ...
After 4 weeks of active treatment, if sitting SBP (sSBP) still was above 150mm Hg, the dose had to be doubled ... were assigned to received amlodipine (n = 97) or hydrochlorothiazide (n = 100).