title: Potentiation of warfarin by tetracycline.
mesh_terms: D000328:Adult; D004318:Doxycycline / Q000009:adverse effects*; D004357:Drug Synergism; D005260:Female; D006801:Humans; D008595:Menorrhagia / Q000139:chemically induced; D011517:Prothrombin Time; D014859:Warfarin / Q000009:adverse effects*
chemical_list: D014859:Warfarin; D004318:Doxycycline