Chemical name: Leucovorin
Brand names: Wellcovorin, Citrovorum Factor, Folinic Acid
Class: Folic acid (B-9 vitamin). There are no other folic acids used to treat breast cancer.
How it works: Leucovorin enhances the anti-cancer effects of certain chemotherapy medicines and helps protect healthy cells from other chemotherapy medicines.
Uses: Leucovorin typically is given with:
- fluorouracil to enhance the effect of that chemotherapy
- methotrexate to protect healthy cells from damage caused by that chemotherapy
How it's given: Leucovorin is a pill taken by mouth.