name Levoleucovorin namespace https://bioinformatics.umg.eu/onkopus/drugon# parent Drug parent Antidotes parent Protective_Agents parent Pigments,_Biological parent Tetrahydrofolates parent Pteridines parent Vitamins parent Heterocyclic_Compounds,_Fused-Ring parent Enzymes_and_Coenzymes parent Biological_Factors parent Vitamin_B_Complex parent Coenzymes parent Compounds_used_in_a_research,_industrial,_or_household_setting parent Pterins parent Formyltetrahydrofolates targets_at Serine_hydroxymethyltransferase