Pharmacology Anti-Cancer 197a89cf Mercaptopurine is A Purine analogue B Nucleoside analogue C Pyrimidine analogue D Anti tumor antibiotics High-Yield Explanation Ref: Katzung, 14th ed. pg. 960; KDT, 6th ed. pg. 820* Mercaptopurine is synthetic purine used in cancer chemotherapy.* Use: Childhood acute leukemia.