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Efudex

(EH-fyoo-dex)
A drug that contains the active ingredient fluorouracil and is used as a cream to treat actinic keratosis (a skin condition that may become cancer) and basal cell skin cancer that is not invasive and cannot be treated with other therapy. Efudex stops cells from making DNA and may kill cancer cells. It is a type of antimetabolite.
Search NCI's Dictionary of Cancer Terms