期刊
JOURNAL OF CLINICAL PHARMACOLOGY
卷 46, 期 12, 页码 1426-1438出版社
WILEY
DOI: 10.1177/0091270006293753
关键词
drug-drug interactions; HPLC/MS/MS; in vitro; P4502B6; rhCYP2B6
Cytochrome P450 2B6 (CYP2B6) is involved in the metabolism of drugs such as bupropion, efavirenz, propofial, and selegiline, among others. More than 200 commonly prescribed drugs and other xenobiotics were examined for their ability to inhibit CYP2B6-mediated bupropion hydroxylase activity. Thirty compounds were found exhibiting greater than 50% inhibition at 30 mu M. Inhibitors Of CYP2136 were identified from a wide variety of therapeutic classes. The 2 platelet aggregation inhibitors, clopidogarel and ticlopidine, were both identified as potent inhibitors (IC50 = 0.0206 and 0.149 mu M, respectively). Other inhibitors (IC50 < 1 mu M) included clotrimazole, itraconazole, setraline, and raloxifene. These in vitro data were used along with clinical phormacokinetic information in the prediction of potential drug-drug interactions that could occur by inhibition of CYP2B6. Although few drugs tested are expected to cause drug interactions, clopidogrel and ticlopidine were identified as being of concern as potential inhibitors of clinical relevance. These findings are discussed in context to potential drug interactions that could be observed between these agents and drugs for which CYP2B6 is involved in metabolism.
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