title: Methotrexate toxicity in a patient receiving trimethoprim-sulfamethoxazole.
mesh_terms: D000368:Aged; D000892:Anti-Infective Agents, Urinary / Q000009:adverse effects* / Q000627:therapeutic use; D001168:Arthritis / Q000188:drug therapy; D004338:Drug Combinations / Q000009:adverse effects / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000009:adverse effects*; D011565:Psoriasis / Q000188:drug therapy; D013420:Sulfamethoxazole / Q000009:adverse effects* / Q000627:therapeutic use; D014295:Trimethoprim / Q000009:adverse effects* / Q000627:therapeutic use; D015662:Trimethoprim, Sulfamethoxazole Drug Combination
chemical_list: D000892:Anti-Infective Agents, Urinary; D004338:Drug Combinations; D015662:Trimethoprim, Sulfamethoxazole Drug Combination; D014295:Trimethoprim; D013420:Sulfamethoxazole; D008727:Methotrexate