pentobarbital will lessen the extent or influence of tipranavir by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep an eye on.pentobarbital will lessen the level or result of dasatinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Check.pentobarbital will decrease the level or impact of prednisone by i