pentobarbital will lower the extent or outcome of ethotoin by influencing hepatic enzyme CYP2C9/10 metabolism. Use Caution/Keep an eye on.pentobarbital will lower the level or impact of loratadine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep an eye on.pentobarbital will reduce the extent or effect of levamlodipine by i