Efavirenz will lower the extent or effect of diazepam by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Observe. fentanyl iontophoretic transdermal method and diazepam equally raise sedation. Avoid or Use Alternate Drug. Limit use to patients for whom substitute remedy possibilities are inadequate Oral: Information not readily available No dose adjustment https://georgef765oef4.slypage.com/profile