 13. Use of strong CYPCytochrome P4501A2, CYPCytochrome P4502C19 or CYP3A4 inducers andor inhibitors for example, but not limited to, fluvoxamine, fluconazole, ticlopidine, ketoconazole, atazanavir, clarithromycin, indinavir, itraconazole, nelfinavir, ritonavir, saquinavir,telithromycin, voriconazole, grapefruit and seville orange or the juices of these fruits, rifampicin, rifabutin, phenytoin, carbamazepine, phenobarbital and St. Johns Wort 