title: Letter: Increased warfarin requirement during mercaptopurine therapy: a new drug interaction.
mesh_terms: D004336:Drug Antagonism; D006801:Humans; D007951:Leukemia, Myeloid / Q000188:drug therapy* / Q000601:surgery; D008297:Male; D015122:Mercaptopurine / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D008875:Middle Aged; D013156:Splenectomy; D013916:Thrombelastography; D013924:Thrombophlebitis / Q000175:diagnosis / Q000188:drug therapy* / Q000209:etiology; D013997:Time Factors; D014859:Warfarin / Q000008:administration & dosage* / Q000037:antagonists & inhibitors / Q000627:therapeutic use
chemical_list: D014859:Warfarin; D015122:Mercaptopurine