title: Human P450 metabolism of warfarin.
abstract: The anticoagulant drug warfarin occurs as a pair of enantiomers that are differentially metabolized by human cytochromes P450 (CYP). R-warfarin is metabolized primarily by CYP1A2 to 6- and 8-hydroxywarfarin, by CYP3A4 to 10-hydroxywarfarin, and by carbonyl reductases to diastereoisomeric alcohols. S-warfarin is metabolized primarily by CYP2C9 to 7-hydroxywarfarin. Potential warfarin-drug interactions could occur with any of a very wide range of drugs that are metabolized by these P450s, and a number of such interactions have been reported. The efficacy of warfarin is affected primarily when metabolism of S-warfarin is altered.
authors.affiliation: New York State Department of Health, Wadsworth Center, USA.
authors.forename: L S
authors.initials: LS
authors.lastname: Kaminsky
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Zhang
mesh_terms: D002384:Catalysis; D003577:Cytochrome P-450 Enzyme System / Q000737:chemistry / Q000378:metabolism*; D006801:Humans; D013237:Stereoisomerism; D014859:Warfarin / Q000378:metabolism*
chemical_list: D014859:Warfarin; D003577:Cytochrome P-450 Enzyme System