pentobarbital will lower the extent or impact of diazepam intranasal by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Check. Robust or average CYP3A4 inducers could raise price of diazepam elimination; thus, efficacy of diazepam might be lowered.pentobarbital and olopatadine intranasal equally raise sedation. Stay away from or