cobicistat will increase the amount or outcome of diazepam by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Keep track of Intently. A lessened dose of diazepam may be requiredconivaptan will boost the stage or impact of diazepam by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep track of.withdrawal