Butabarbital increases toxicity of methoxyflurane by expanding metabolism. Contraindicated. Greater metabolism of methoxyflurane to nephrotoxic compounds. butabarbital will reduce the extent or outcome of carvedilol by impacting hepatic enzyme CYP2C9/ten metabolism. Use Caution/Keep an eye on. butabarbital will decrease the level or outcome of cannabidiol by influencing hepatic/intest... https://rolimb184icw5.mywikiparty.com/user