title: Theophylline toxicity due to impaired theophylline degradation.
mesh_terms: D000284:Administration, Oral; D000368:Aged; D004562:Electrocardiography; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000188:drug therapy* / Q000628:therapy; D008297:Male; D010102:Oxygen Inhalation Therapy; D026741:Physical Therapy Modalities; D011175:Positive-Pressure Respiration; D011859:Radiography; D013752:Tetracycline / Q000627:therapeutic use; D013806:Theophylline / Q000008:administration & dosage / Q000009:adverse effects* / Q000097:blood / Q000627:therapeutic use; D014859:Warfarin / Q000627:therapeutic use
chemical_list: D014859:Warfarin; D013806:Theophylline; D013752:Tetracycline