Metabolic fate of the natural anticancer agent cucurbitacin B: an LCMS MS enabled profiling of its major phase I and II conjugates in vivo Analytical and Bioanalytical Chemistry Springer Nature Link Critical Roles of the CysteineGlutathione Axis in the Production of Glutamyl Peptides in the Nervous System Metabolic Activation of Mefenamic Acid Leading to Mefenamyl S Acyl Glutathione Adduct Formation In Vitro and In Vivo in Rat Drug Metabolism and Disposition Conjugation With Glucuronic Acid Biotransformation of Drugs Metabolism of Drugs to Toxic Products