pentobarbital will lower the level or impact of fesoterodine by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor.pentobarbital will lessen the extent or result of docetaxel by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Small/Importance Not known.pentobarbital will lower the extent or outcome of voriconazole b