Stereoselective pharmacokinetics of oxprenolol, propranolol, and verapamil: species differences and influence of endotoxin

Chirality
M E LaethemM G Bogaert

Abstract

The influence of endotoxin-induced inflammation was studied on the pharmacokinetics of the enantiomers of the racemic drugs oxprenolol, propranolol, and verapamil in rabbits and dogs. Enantioselective pharmacokinetics were seen for oxprenolol and propranolol in the rabbit and for propranolol and verapamil in the dog. In the dog, the enantioselective differences in plasma concentrations are due to differences in both protein binding and metabolism, whereas in the rabbit the differences are due solely to differences in metabolism. In both species endotoxin treatment increases the plasma concentrations of the enantiomers of the three drugs; both protein binding and metabolism are influenced. In rabbits and in dogs, the influence of endotoxin on the disposition of the three drugs is less enantioselective than was previously observed in the rat.

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Citations

Apr 25, 2003·Journal of Pharmaceutical Sciences·Micheal S Guirguis, Fakhreddin Jamali
Jun 19, 2010·Journal of Veterinary Pharmacology and Therapeutics·M Martinez, S Modric
Jun 22, 1999·Biomedical Chromatography : BMC·J Bojarski, H Y Aboul-Enein

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