Pentobarbital will decrease the level or effect of prednisone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of zonisamide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. pentobarbital will decrease the level or effect of saxagliptin by affecting hepatic/intestinal enz... https://socialwebleads.com/story5785732/nuovo-step-by-step-map-per-pentobarbital-brand-name