<prompt> Methotrexate toxicity is prevented by giving?Folic acidFolinic addCitric acidGlucaric acid  <response>: Ans. is b i.e., Folinic acid Folinic acidFor preventing methotrexate toxicity AllopurinolTo prevent hyperuricemia caused by rapid destruction of cells during cancer chemotherapy. Lithium carbonateIt has stimulant effect on bone marrow, so used during myelosuppresive drug therapy. OndensetronFor controlling cytotoxic drug induced vomiting. MesnaFor prevention of cyclophosphamide formamide indused hemorrhagic cystitis 