Definition of cobalamin - NCI Dictionary of Cancer Terms

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cobalamin (koh-BAL-uh-min)

A vitamin that is needed to make red blood cells and DNA (the genetic material in cells) and to keep nerve cells healthy. It is found in eggs, meat, poultry, shellfish, milk, and milk products. Cobalamin, along with folate, may be given to help reduce side effects in cancer patients being treated with drugs called antimetabolites. Also called vitamin B12.

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