1
Captopril, an orally active
angiotensin converting enzyme inhibitor, was compared with
hydrochlorothiazide (HCT) in the treatment of mild and moderate
essential hypertension. 2 Twenty outpatients received no
antihypertensive therapy for 2 weeks, after which they were given placebo for 8 weeks. Since their diastolic blood pressure remained above 100 mm Hg, they were then randomized to receive either
captopril (twelve patients) or HCT (eight patients) for a 4-week titration period. If the supine diastolic blood pressure (SDBP) was normalized, (less than or equal to 90 mm Hg) by the end of titration period, the established regimen was continued for an 8-week maintenance period; if not, the alternate
drug was added in increasing doses for up to 4 weeks and the combined
therapy was maintained for the remaining 4 weeks. 3 After the first 4 weeks of
therapy, both groups showed a statistically significant decrease in both systolic and diastolic blood pressure. Normalization of SDBP occurred in 75% of patients treated with
captopril alone, and the addition of HCT produced normalization in the remainder. HCT alone resulted in normalization of SDBP in 50% of patients and the blood pressure of the remaining patients was normalized after the addition of
captopril. 4
Captopril given orally, either alone or in conjunction with HCT, is an effective agent for the control of mild and moderate
essential hypertension. 5 In our series the main side effects encountered were
vertigo and
dizziness, transient
eosinophilia, a rise of BUN and or/a rise of
SGPT or
SGOT.