Butabarbital improves toxicity of methoxyflurane by expanding metabolism. Contraindicated. Increased metabolism of methoxyflurane to nephrotoxic compounds. butabarbital will lower the extent or influence of fosphenytoin by impacting hepatic enzyme CYP2C9/ten metabolism. Use Caution/Check. close You should affirm that you want to Sign off of Medscape. When you log out, you https://friedrichy420bec0.wikiap.com/user