pentobarbital will lower the extent or result of ombitasvir/paritaprevir/ritonavir & dasabuvir (DSC) by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated. Powerful CYP3A4 inducers may possibly lessen partiaprevir and ritonavir ranges, and therefore diminished efficacy of Viekira Pakpentobarbital will reduce the level or effect