pentobarbital will lessen the extent or influence of ritonavir by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep track of.pentobarbital will reduce the extent or result of aripiprazole by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep track of.fentanyl transdermal and pentobarbital both boost seda