Fluorouracil interferes with the growth of skin cells. Fluorouracil works by causing the death of cells which are growing fastest, such as abnormal skin cells.
Fluorouracil topical is used to treat scaly overgrowths of skin (actinic or solar keratoses). Fluorouracil topical may also be used in the treatment of superficial basal cell carcinoma.
Fluorouracil topical may also be used for purposes other than those listed in this medication guide. mce-anchor What are the possible side effects of fluorouracil topical (Efudex)?
Serious side effects are not likely to occur. Stop using fluorouracil topical and seek emergency medical attention if you experience an allergic reaction (shortness of breath; closing of your throat; swelling of your lips, face, or tongue; or hives).
Fluorouracil topical may cause skin irritation, dryness, scaling or peeling (exfoliation), rash, and other local reactions. Eye irritation has also been reported. If these side effects are excessive or worsen with continued treatment, contact your doctor.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.
