Pentobarbital will decrease the level or effect of prednisone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of amiodarone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. pentobarbital will decrease the level or effect of levonorgestrel oral/ethinylestradiol/ferrous bisglycin... https://livebookmarking.com/story20284599/un-arma-segreta-per-pentobarbital-de-sodium