Slow-release oxprenolol compared with oxprenolol in hypertensive patients: A multicenter clinical trial

B. J. Materson, B. A. Friedman, K. M. Hla, B. S. Neidorf, J. M. Gray, N. Glazer, S. Gross

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Oxprenolol (OX) is a nonselective, β-adrenergic blocking agent with intrinsic sympathomimetic activity. We studied 178 patients in five centers to determine whether a polymer-matrix-based, slow-release preparation of oxprenolol (SR-OX) given once daily was as effective as the standard preparation given twice daily for the treatment of patients with mild to moderate hypertension. After a placebo washout phase, patients were treated with OX until blood pressure was controlled. They were then randomized in a double-blind fashion to continue the same dose, given as either OX bid or SR-OX qd with a placebo as the second dose. All patients took hydrochlorothiazide 50-100 mg/d throughout the study. Blood pressure was reduced 23/15 mm Hg (p < 0.001) and pulse 8 beats/min in the SR-OX group (n = 67), and 24/17 mm Hg (p < 0.001) and 8 beats/min in the OX group (n = 72) by titrating standard OX. After randomization to SR-OX or OX, there were no further changes over six weeks. Home-determined blood pressures showed no loss of control in the evening. There were no unexpected adverse effects. We conclude that SR-OX given once daily is as effective as OX given twice daily for the treatment of hypertension.

Original languageEnglish (US)
Pages (from-to)51-54
Number of pages4
JournalUnknown Journal
Volume17
Issue number1
DOIs
StatePublished - Jan 1 1983

ASJC Scopus subject areas

  • Pharmacology, Toxicology and Pharmaceutics(all)
  • Pharmacology (medical)

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    Materson, B. J., Friedman, B. A., Hla, K. M., Neidorf, B. S., Gray, J. M., Glazer, N., & Gross, S. (1983). Slow-release oxprenolol compared with oxprenolol in hypertensive patients: A multicenter clinical trial. Unknown Journal, 17(1), 51-54. https://doi.org/10.1177/106002808301700115