Pharmacokinetics and pharmacodynamics of stereoisomeric drugs with particular reference to bioequivalence determination
Toutain, Pierre-Louis
Drugs containing one or more chiral centres exist in stereoisomeric molecular forms. Most commonly, drugs containing a single asymmetric carbon atom exist in two enantiomeric forms, designated as eutomer (the more potent) and distomer(the less potent). As well as differences in potency and other pharmacodynamic properties, most members of enantiomeric pairs commonly differ also in their pharmacokinetic profiles. This article reviews factors underlying differences in pharmacological properties of enantiomers. The relevance of such differences for studies designed to evaluate the bioequivalence of products containing chiral drugs is also reviewed.
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