pentobarbital will lessen the level or impact of ripretinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism.pentobarbital will minimize the extent or influence of tamoxifen by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep track of.pentobarbital will lessen the extent or impact of levonorgestrel oral/ethinylestradi