title: Toxic reaction to methotrexate in a patient receiving penicillin and furosemide: a possible interaction.
mesh_terms: D003882:Dermatomyositis / Q000188:drug therapy; D004338:Drug Combinations; D004347:Drug Interactions; D005665:Furosemide / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008727:Methotrexate / Q000009:adverse effects*; D008875:Middle Aged; D010406:Penicillins / Q000627:therapeutic use*
chemical_list: D004338:Drug Combinations; D010406:Penicillins; D005665:Furosemide; D008727:Methotrexate