<qa>  What is the name of the drug that is known as CYP3A4 or Cy- Current use or anticipated inability to avoid use of drugs that are known CYP3A4 or Cytochrome P450 1A2 CYP1A2 inducers ie, carbamazepine, dexamethasone, felbamate, omeprazole, phenobarbital, phenytoin, primidone, rifabutin, rifampin, and St. Johns wort. 