Proper Use

Drug information provided by: Micromedex

Keep using this medicine for the full time of treatment. However, do not use this medicine more often or for a longer time than your doctor ordered. Apply enough medicine each time to cover the entire affected area with a thin layer.

After washing the area with soap and water and drying carefully, use a cotton-tipped applicator or your fingertips to apply the medicine in a thin layer to your skin.

If you apply this medicine with your fingertips, make sure you wash your hands immediately afterwards, to prevent any of the medicine from accidentally getting in your eyes or mouth.

Fluorouracil may cause redness, soreness, scaling, and peeling of affected skin after 1 or 2 weeks of use. This effect may last for several weeks after you stop using the medicine and is to be expected. Sometimes a pink, smooth area is left when the skin treated with this medicine heals. This area will usually fade after 1 to 2 months. Do not stop using this medicine without first checking with your doctor. If the reaction is very uncomfortable, check with your doctor.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For cream dosage form:
    • For precancerous skin condition caused by the sun:
      • Adults—Use the 0.5% or 1% cream on the affected areas of skin one or two times a day. The 5% cream is sometimes used on the hands.
      • Children—Use and dose must be determined by your doctor.
    • For skin cancer:
      • Adults—Use the 5% cream on the affected areas of skin two times a day. Treatment may continue for several weeks.
      • Children—Use and dose must be determined by your doctor.
  • For topical solution dosage form:
    • For precancerous skin condition caused by the sun:
      • Adults—Use the 1% solution on the affected areas of skin one or two times a day. The 2% or 5% solution is sometimes used on the hands.
      • Children—Use and dose must be determined by your doctor.
    • For skin cancer:
      • Adults—Use the 5% solution on the affected areas of skin two times a day. Treatment may continue for several weeks.
      • Children—Use and dose must be determined by your doctor.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.