Pentobarbital will decrease the level or effect of aprepitant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of eletriptan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of saxagliptin by affecting hepatic/intestinal enzyme CYP... https://hubwebsites.com/story21703903/the-ultimate-guide-to-pentobarbital-de-sodium