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 meloxicam by affecting hepatic enzyme CYP2C9/10 metabolism. Minor/Significance Unknown. pentobarbital decreases effects of sufentanil SL by affecting hepatic/intestinal enzyme CYP3A4 metab... https://bookmarksfocus.com/story5949419/5-elementi-essenziali-per-acquista-nembutal-liquido-iniettabile