title: Rescue from methotrexate toxicity.
mesh_terms: D006801:Humans; D008727:Methotrexate / Q000627:therapeutic use / Q000633:toxicity*; D011292:Premedication; D013763:Tetrahydrofolates / Q000627:therapeutic use*
chemical_list: D013763:Tetrahydrofolates; D008727:Methotrexate