Background:

Levoleucovorin calcium is the calcium salt of Levoleucovorin, which is the enantiomerically active form of folinic acid.IC50 value: Target: Levoleucovorin is used to treat or prevent toxic effects of methotrexate in people who have received methotrexate to treat bone cancer. Levoleucovorin is also used in combination chemotherapy with fluorouracil (5-FU) to treat colorectal cancer that has spread to other parts of the body. This medicine only treats the symptoms of colorectal cancer and does not treat the cancer itself.

参考文献:
[1]. Levomefolic acid. From Wikipedia, the free encyclopedia