Pentobarbital will lessen the extent or result of saxagliptin by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Insignificant/Importance Not known. pentobarbital will reduce the extent or effect of itraconazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Small/Importance Not known. pentobarbital will decrease the level or effect of vincristine liposomal by influe... https://erasmuse443zqh3.wikiinside.com/user