NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,804 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

Wellcovorin
(wel-koh-VOR-in)
A drug used to lessen the toxic effects of substances that block the action of folic acid, especially the anticancer drug methotrexate. Wellcovorin is used to treat some types of anemia and is also used with fluorouracil to treat colorectal cancer. It is also being studied in the treatment of other types of cancer and other conditions. Wellcovorin is a form of folic acid. It is a type of chemoprotective agent and a type of chemosensitizing agent. Also called calcium levoleucovorin, citrovorum factor, and leucovorin calcium.