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Title: In vitro metabolism of mirtazapine enantiomers by human cytochrome P450 enzymes.
Austin Authors: Dodd, Seetal;Boulton, David W.;Burrows, Graham D.;De Vane, C. Lindsay;Norman, Trevor R 
Affiliation: Department of Psychiatry, University of Melbourne, Austin and Repatriation Medical Centre, Heidelberg, Victoria 3084, Australia
Issue Date: 1-Oct-2001
Publication information: Human Psychopharmacology; 16(7): 541-544
Abstract: The metabolism of mirtazapine enantiomers was investigated in vitro using human lymphoblast microsomes transfected with human cDNA to overexpress either CYP1A2, CYP2C9, CYP2C19, CYP2D6 or CYP3A4 and assayed for mirtazapine enantiomers using a validated chiral method of high-performance liquid chromatography. (+)-Mirtazapine was extensively metabolised by CYP2D6 (K(m) = 9.3 +/- 3.3 &mgr;mol/l, V(max) = 40.9 +/- 7.9 &mgr;mol/h/mg, intrinsic clearance = 4.41 l/h/mg). CYP1A2 and CYP3A4 showed low metabolic activity towards (+)-mirtazapine and (-)-mirtazapine respectively. Neither CYP2C9 nor CYP2C19 appeared to be involved in the metabolism of the enantiomers of mirtazapine. Copyright 2001 John Wiley & Sons, Ltd.
Gov't Doc #: 12404550
DOI: 10.1002/hup.328
Type: Journal Article
Appears in Collections:Journal articles

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