Decreased exposure w/ strong CYP3A4 inducers (eg, carbamazepine, rifampicin, enzalutamide, phenytoin, St. John's Wort [
Hypericum perforatum]). Increased exposure w/ strong CYP3A4 inhibitors (eg, ketoconazole, itraconazole). Medicinal products w/ narrow therapeutic range that are substrates of CYP1A2 (eg, tizanidine), CYP2D6 (eg, codeine), CYP2C8 (eg, paclitaxel), CYP2C9 (eg, warfarin), CYP2C19 (eg, omeprazole), CYP2E1 (eg, chlorzoxazone), CYP3A4/5 (eg, tacrolimus), CYP2B6 (eg, efavirenz), P-gp (eg, paclitaxel), BCRP (eg, atorvastatin) or OATP1B1 (eg, digoxin) may need dose adjustment to maintain optimal exposure when given concomitantly w/ midostaurin. Increased absroption (AUC) & reduced peak conc (C
max) w/ standard & high-fat meal.