title: Letter: Interaction of nalidixic acid and warfarin.
mesh_terms: D004347:Drug Interactions; D004357:Drug Synergism; D004927:Escherichia coli Infections / Q000188:drug therapy; D005260:Female; D006801:Humans; D008875:Middle Aged; D009268:Nalidixic Acid / Q000009:adverse effects* / Q000627:therapeutic use; D011517:Prothrombin Time; D011693:Purpura / Q000139:chemically induced; D013924:Thrombophlebitis / Q000188:drug therapy; D014552:Urinary Tract Infections / Q000188:drug therapy; D014859:Warfarin / Q000627:therapeutic use*
chemical_list: D009268:Nalidixic Acid; D014859:Warfarin