RT Book, Section A1 Katzung, Bertram G. A1 Kruidering-Hall, Marieke A1 Tuan, Rupa Lalchandani A1 Vanderah, Todd W. A1 Trevor, Anthony J. SR Print(0) ID 1180555069 T1 Drug Metabolism T2 Katzung & Trevor's Pharmacology: Examination & Board Review, 13e YR 2021 FD 2021 PB McGraw-Hill Education PP New York, NY SN 9781260117127 LK accesspharmacy.mhmedical.com/content.aspx?aid=1180555069 RD 2024/04/18 AB All organisms are exposed to foreign chemical compounds (xenobiotics) in the air, water, and food. To ensure elimination of pharmacologically active xenobiotics and to terminate the action of many endogenous substances, evolution has provided metabolic pathways that alter such compounds’ activity and their susceptibility to excretion.