Pentobarbital will minimize the level or influence of propafenone by influencing hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Importance Unidentified. pentobarbital will decrease the extent or effect of etoposide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Watch. With therapeutic doses of TCAs, barbiturates raise metabolism and reduce blood concentratio... https://cristiantepyg.wizzardsblog.com/35848187/not-known-facts-about-nembutal-products-for-sale-online