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The comparative beta-adrenoceptor blocking effects of penbutolol, atenolol and sustained-release metoprolol in healthy volunteers



The comparative beta-adrenoceptor blocking effects of penbutolol, atenolol and sustained-release metoprolol in healthy volunteers



European Journal of Clinical Pharmacology 27(3): 269-273



The effects of penbutolol (40 mg), atenolol (100 mg) and sustained-release metoprolol (metoprolol SA) (200 mg) upon heart rate (HR) and blood pressure (BP) at rest and during bicycle ergometer exercise, have been compared in 12 healthy young men using a double-blind crossover design. Measurements of each drug's effect were made before and at 3, 10 and 24 h after a single dose, and again at 24 h after the last of seven consecutive daily doses. Resting HR and systolic BP were reduced to an equivalent extent by all three drugs. During the third minute of exercise, the effects of penbutolol and atenolol upon HR and systolic BP were consistently similar and greater than those of metoprolol SA.

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Accession: 044579115

Download citation: RISBibTeXText

PMID: 6510453

DOI: 10.1007/bf00542158


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