pentobarbital will decrease the extent or effect of fosamprenavir by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep an eye on.pentobarbital will lower the extent or result of buprenorphine by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Monitor.Keep an eye on Carefully (one)pentobarbital will decreas