pentobarbital will reduce the extent or effect of etravirine by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Check.pentobarbital will minimize the level or impact of ombitasvir/paritaprevir/ritonavir & dasabuvir (DSC) by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Strong CYP3A4 inducers may perhaps