Butabarbital will lower the level or effect of amlodipine by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep track of. butabarbital will decrease the extent or outcome of cyclosporine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Check. butabarbital will lower the extent or impact of cannabidiol by impacting hepatic/intestinal enzyme CYP3A4 https://anneh172uly6.get-blogging.com/profile