Pentobarbital will decrease the level or effect of alfentanil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. pentobarbital will decrease the level or effect of vincristine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. pentobarbital will decrease the level or effect of bexarotene by affecting hepatic/intesti... https://cyberbookmarking.com/story20231495/tutto-ci%C3%B2-che-riguarda-what-is-nembutal-pentobarbital