Co-administration w/ strong CYP450 CYP3A enzyme inducers including anticonvulsants (eg, carbamazepine, oxcarbazepine, phenobarb, phenytoin), androgen receptor inhibitor (eg, enzalutamide), antimycobacterials (eg, rifampin, rifapentine), cytotoxic agent (eg, mitotane), St. John's wort, lumacaftor.