Xenobiotic Metabolism Pathway

Xenobiotic metabolism pathway describes pharmaceutical biotransformation through phase I, II, and III processes. Cytochrome P450 oxidation initiates metabolism. Glucuronidation and sulfation enhance water solubility. Transporters actively excrete conjugates. Genetic variation produces interindividual metabolism differences.

Metabolite identification guides toxicity assessment. Drug-drug interactions reflect pathway competition. Regulatory submissions incorporate metabolism information. Population pharmacokinetics characterise pathway variation. Post-approval monitoring confirms predictions.