The active metabolite of FOLIC ACID. Leucovorin is used principally as an antidote to FOLIC ACID ANTAGONISTS.

Synonyms: Monosodium Salt Leucovorin, Leucovorin, Monosodium Salt, Leucovorin, Calcium, 22350-60-3, Leucovorin, (D)-Isomer, 5 Formyltetrahydrofolate, Leucovorin, Leucovorin, Calcium (1:1) Salt, (DL)-Isomer, Folinic Acid, Folinic Acid SF, Calcium Folinate, Leukovorin, Wellcovorin, Calcium Leucovorin, 5-Formyltetrahydrofolate, Citrovorum Factor, Leukovorum, N(5)-Formyltetrahydrofolate, Factor, Citrovorum, L-Glutamic acid, N-(4-(((2-amino-5-formyl-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl)amino)benzoyl)-, 42476-21-1, Leucovorin, Calcium (1:1) Salt, Folinate, Calcium, Folinic Acid-SF, Acid, Folinic, 0, 6035-45-6, RPR1R4C0P4, Leucovorin, Calcium (1:1) Salt, Pentahydrate, Leucovorin, (DL)-Isomer, 73951-54-9, 54353-24-1, Leucovorin, (R)-Isomer, 67005-79-2, Q573I9DVLP, 5-Formyltetrahydropteroylglutamate, 1492-18-8, 5 Formyltetrahydropteroylglutamate