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 conjugated estrogens, vaginal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of tolterodine by affecting hepatic/in... https://1001bookmarks.com/story20170746/tutto-ci%C3%B2-che-riguarda-what-is-nembutal-pentobarbital