Citrovorum factor is given along with all the drugs except: (A) Methotrexate, (B) Pemetrexed, (C) Pyrimethamine, (D) Cytosine arabinoside
Answer is D. Citrovorum factor or rescue factor or folinic acid -active form of folic acid is given along with antifolate drugs like Methotrexate, pemetrexed,pyrimethamine, cotrimoxazole,5 fluorouracil.Ref: Tripati 6thed.Pg : 592