Axinix 1 Axitinib Rifampicin
ModerateRifampicin (called rifampin in the leaflet) is a strong "inducer" of CYP3A4/5. These are enzymes in your body that break Axitinib down. Rifampicin makes them work faster, so less Axitinib stays in your blood. In healthy volunteers who took both medicines, the amount of Axitinib in the blood was lower than usual. Rifampicin is one of several medicines with this effect. The leaflet also lists dexamethasone, phenytoin, carbamazepine, rifabutin, rifapentine and phenobarbital, along with St. John's wort. Tell your doctor or pharmacist that you are taking Axitinib before you start any of these.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.