This medication is used on the skin to treat pre-cancerous and cancerous skin growths. Fluorouracil belongs to a class of medications known as anti-metabolites. It works by blocking the growth of abnormal cells that cause the skin condition.

What does Efudex do to healthy skin?

Efudix contains the active ingredient fluorouracil and belongs to a group of medicines called anti-cancer medicines (also called antineoplastic or cytotoxic medicines) that are applied to the skin. It works by destroying precancerous and cancerous cells, while having little effect on normal cells.

Is Efudex a form of chemotherapy?

Efudex is an anti-cancer ("antineoplastic" or "cytotoxic") chemotherapy drug.