pentobarbital will lessen the extent or result of fosamprenavir by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep an eye on.pentobarbital will minimize the level or impact of buprenorphine by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep track of.Use Warning/Observe. CYP3A4 inducers may well en