Pentobarbital will lessen the level or effect of tinidazole by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Monitor. Prevent; coadministration with CYP3A inducers could cause decreased plasma concentrations of elvitegravir and/or maybe a concomitantly administered protease inhibitor and lead to loss of therapeutic influence and to feasible resistance pentobarbita... https://joshn123znc1.wikijournalist.com/user