danazol will boost the amount or outcome of diazepam by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Observe.fosphenytoin will minimize the extent or outcome of diazepam by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Check.Valium is detectable in blood for 6 to forty eight several hours. Blood exams te