You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Folinic acid is: and explain in detail?
* Folinic acid is 5-formyltetrahydrofolate. It is also known as leucovorin and citrovorum factor. * Folinic acid can be directly conveed to N5, N10-methylene tetrahydrofolate. Extra:-When methotrexate is used for chemotherapy, normal cells are also affected. * Folinic acid is administered to rescue the normal cells from the toxic effect of methotrexate.