Neratinib is not a mechanism-based inhibitor of CYP2C9,2C19,2D6,or 3A4 at concentrat ions up to 100 μM.Neratinib is not likely an inducerforCYP1A2, 2B6,2C9 or 3A4 at concentrations up to 1μM,which is > 10-fold of the totalCmax at steady state following the therapeutic dosing regimen.