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Folinic acid, also known as leucovorin, is a medication used to decrease the toxic effects of methotrexate and pyrimethamine. [2] [3] It is also used in combination with 5-fluorouracil to treat colorectal cancer and pancreatic cancer, may be used to treat folate deficiency that results in anemia, and methanol poisoning.
Folic acid supplements have little established role in cancer chemotherapy. [60] [61] The supplement of folinic acid in people undergoing methotrexate treatment is to give less rapidly dividing cells enough folate to maintain normal cell functions. The amount of folate given is quickly depleted by rapidly dividing (cancer) cells, so this does ...
Folic acid is a synthetic derivative of folate and is acquired by dietary supplementation. [25] Multi-vitamin dietary supplements contain folic acid as well as other B vitamins. Non-prescription folic acid is available as a dietary supplement in some countries, and some countries require the fortification of wheat flour, corn meal or rice with ...
Folinic acid is a metabolically active form of folate that can be easily introduced into the folate cycle. A typical dose that is administered to children is 0.5–1 mg/kg daily, but the dose can be increased depending on the severity of symptoms and the age of the child.
Pyrimethamine is typically given with folinic acid and sulfadiazine. [10] Sulfonamides (e.g. sulfadiazine) inhibit dihydropteroate synthetase, an enzyme that participates in folic acid synthesis from para-aminobenzoic acid. Hence, sulfonamides work synergistically with pyrimethamine by blocking a different enzyme needed for folic acid synthesis.
FOLFIRI is a chemotherapy regimen for treatment of colorectal cancer.It is made up of the following drugs: [1] FOL – folinic acid (), a vitamin B derivative with multiple applications, which in this context decreases the cytotoxicity of 5-fluorouracil;