Onset and duration of beta-adrenergic receptor blockade following single oral dose acebutolol hydrochloride (Sectral).
- 1 June 1979
- journal article
- clinical trial
- Published by Wiley in British Journal of Clinical Pharmacology
- Vol. 7 (6), 557-561
- https://doi.org/10.1111/j.1365-2125.1979.tb04642.x
Abstract
1. The onset and duration of action of once daily acebutolol (400 mg) on resting and exercise heart rate and blood pressure were studied in normal subjects in a double-blind, cross-over trial against placebo. Subjects were studied 1.5, 3, 8 and 24 h after the first dose and 24 h after the fifth dose. 2. Resting and exercise heart rate and blood pressure were significantly reduced within 90 min of the first dose. 3. A significant reduction in these variables persisted throughout 24 h after the fifth daily dose. However, at 24 h the effects were considerably attenuated, the falls in resting and exercise systolic blood pressure being only 5%. 4. A linear relationship was noted between log serum drug level and percentage reduction of exercise heart rate.Keywords
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