Pentobarbital will decrease the level or effect of ketoconazole by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. pentobarbital will decrease the level or effect of nateglinide by affecting hepatic enzyme CYP2C9/10 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of alosetron by affecting hepatic/intestinal enzyme CYP... https://express-page.com/story5727782/nuovo-step-by-step-map-per-pentobarbital-brand-name