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pubmed:abstractText |
WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT: Imatinib, a tyrosine kinase inhibitor, exhibits a competitive inhibition on the CYP450 2D6 isozyme with a K(i) value of 7.5 microm. However, the clinical significance of the inhibition and its relevance to 2D6 polymorphisms have not been evaluated. The pharmacokinetics of imatinib have been well studied in Caucasians, but not in a Chinese population. Metoprolol, a CYP2D6 substrate, has different clearances among patients with different CYP2D6 genotypes. It is often used as a CYP2D6 probe substrate for clinical drug-drug interaction studies.
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