| ATC_prefix = L01 | ATC_suffix = BB02 | PubChem = 667490 | DrugBank = APRD01096.txt | C = 5 | H = 4 | N = 4 | S = 1 | molecular_weight = 152.177 g/mol | bioavailability = 5 to 37% | metabolism = xanthine oxidase | elimination_half-life = 60 to 120 min., longer for its active metabolites | excretion = Renal | pregnancy_category = ?,(Increased Risk of Abortion) | legal_status = ? | routes_of_administration = Oral }} Mercaptopurine (also called 6-mercaptopurine, 6-MP or its brand name Purinethol)… (More on 6-mercaptopurine)