PMID: 7030750Jan 1, 1981Paper

Correlation between propranolol in plasma and urine, renin-aldosterone system and blood pressure in essential hypertension

European Journal of Clinical Pharmacology
E B PedersenP Bjerregaard

Abstract

Thirty patients with mild or moderate essential hypertension, and a fixed elevation of diastolic blood pressure, were randomly allocated to three groups and treated with propranolol 40 mg x 4 (Group 1), 80 mg x 4 (group 2) and 160 mg x 4 (Group 3). Blood pressure (BP), pulse rate (PR), plasma renin activity (PRA), plasma aldosterone concentration (PAC), total plasma propranolol (tPP), free plasma propranolol (fPP), and 24 h urinary propranolol excretion (UP) were determined at the end of four consecutive periods: (A) after four weeks without any treatment; (B) after two to three weeks during which the propranolol dose was gradually increased to the intended level; (C) after four weeks, and (D) after eight weeks of unchanged treatment. The maximum reduction in diastolic BP occurred after period B, and in systolic BP after Period C, for Groups 2 and 3, and for all groups together; for Group 1, however, the maximum diastolic BP reduction was first seen after period C. PR was reduced to the same level in all groups after period B. After period B, PRA an PAC fell in all groups, and remained reduced during C and D Group 1. After periods C and D, PRA and PAC in Groups 2 and 3 did not differ significantly from the levels after period A...Continue Reading

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Citations

Mar 1, 1984·British Journal of Clinical Pharmacology·F AndreasenJ Weeke

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