If The mixture cannot be avoided, monitor teniposide response carefully. Consider therapy modification butabarbital will lower the level or result of glecaprevir/pibrentasvir by influencing hepatic/intestinal enzyme CYP3A4 metabolism. butabarbital will decrease the level or result of pimozide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Insignificant/Significance Unknown.... https://sandran276fuf3.loginblogin.com/profile