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  • Title: United States experience with oxprenolol in hypertension.
    Author: Friedman B, Gray JM, Gross S, Levit SA.
    Journal: Am J Cardiol; 1983 Nov 10; 52(9):43D-48D. PubMed ID: 6356865.
    Abstract:
    Double-blind, randomized, parallel-group studies have confirmed that oxprenolol, either alone or in combination with a thiazide, is effective in reducing elevated blood pressure. In 2 of 3 comparisons with placebo, the blood pressure reduction was significantly more effective with oxprenolol; in 1 study, even though the placebo response was pronounced, oxprenolol was still more effective than placebo. In 2 studies propranolol reduced blood pressure by about 2 mm Hg more than oxprenolol. In the larger, longer-term study this difference was significant at the end of the dose-titration period, but there were no significant differences between the 2 treatment groups at study end. Moreover, oxprenolol reduced heart rate less and was associated with fewer side effects. Oxprenolol effectively lowered blood pressure when given once daily and was well tolerated, even in large doses. Blood pressure was reduced less with oxprenolol than with hydrochlorothiazide, -14/-11 versus -20/-13 mm Hg. The mean reduction with oxprenolol was less for black patients than for white. In a 1-year safety study, 86% of the patients continued to have a diastolic pressure of less than 90 mm Hg at study end.
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