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 amiodarone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. When barbiturates like Nembutal are abused, they are not usually the primary drug of abuse. Like https://worldlistpro.com/story22274586/dove-acquistare-pentobarbital-online-una-panoramica