Pentobarbital will reduce the extent or impact of aripiprazole by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep an eye on. pentobarbital improves effects of ifosfamide by affecting hepatic enzyme CYP2B6 metabolism. Use Warning/Keep an eye on. Coadministration of ifosfamide with CYP2B6 inducers may enhance metabolism of ifosfamide to its metabolite. https://larryu578lew2.wikitron.com/user