Fluorouracil Cream, 0.5%
Generic Name: fluorouracil cream, 0.5%
Brand Names:
Fluorouracil
DESCRIPTION Fluorouracil cream, 0.5%, contains fluorouracil for topical dermatologic use. Chemically, fluorouracil is 5-fluoro-2,4(1H, 3H)-pyrimidinedione. The molecular formula is C 4 H 3 FN 2 O 2 . Fluorouracil has a molecular weight of 130.08. Fluorouracil cream contains 0.5% fluorouracil, with 0.35% being incorporated into a patented porous microsphere (Microsponge ® ) composed of methyl methacrylate/glycol dimethacrylate crosspolymer and dimethicone.
Overview
DESCRIPTION Fluorouracil cream, 0.5%, contains fluorouracil for topical dermatologic use. Chemically, fluorouracil is 5-fluoro-2,4(1H, 3H)-pyrimidinedione. The molecular formula is C 4 H 3 FN 2 O 2 . Fluorouracil has a molecular weight of 130.08. Fluorouracil cream contains 0.5% fluorouracil, with 0.35% being incorporated into a patented porous microsphere (Microsponge ® ) composed of methyl methacrylate/glycol dimethacrylate crosspolymer and dimethicone.
Uses
INDICATIONS AND USAGE Fluorouracil cream, 0.5% is indicated for the topical treatment of multiple actinic or solar keratoses of the face and anterior scalp.
Dosage
DOSAGE AND ADMINISTRATION Fluorouracil cream, 0.5% should be applied once a day to the skin where actinic keratosis lesions appear, using enough to cover the entire area with a thin film. Fluorouracil cream, 0.5% should not be applied near the eyes, nostrils, or mouth. Fluorouracil cream, 0.5% should be applied 10 minutes after thoroughly washing, rinsing, and drying the entire area. Fluorouracil cream, 0.5% may be applied using the fingertips. Immediately after application, the hands should be thoroughly washed. Fluorouracil cream, 0.5% should be applied up to 4 weeks as tolerated. Continued treatment up to 4 weeks results in greater lesion reduction.
Side Effects
ADVERSE REACTIONS The following were adverse events considered to be drug related and occurring with a frequency of 1% with fluorouracil cream, 0.5%: application site reaction (94.6%), and eye irritation (5.4%). The signs and symptoms of facial irritation (i.e., application site reaction) are presented below. Summary of Facial Irritation Signs and Symptoms - Pooled Phase 3 Studies Clinical Sign or Symptom Active 1 Week N=85 Active 2 Week N=87 Active 4 Week N=85 ALL Active Treatments N=257 Vehicle Treatments N=127 n (%) n (%) n (%) n (%) n (%) Erythema 76 (89.4) 82 (94.3) 82 (96.5) 240 (93.4) 76 (59.8) Dryness 59 (69.4) 76 (87.4) 79 (92.9) 214 (83.3) 60 (47.2) Burning 51 (60.0) 70 (80.5) 71 (83.5) 192 (74.7) 28 (22.0) Erosion 21 (24.7) 38 (43.7) 54 (63.5) 113 (44.0) 17 (13.4) Pain 26 (30.6)...
Warnings
WARNINGS The potential for a delayed hypersensitivity reaction to fluorouracil exists. Patch testing to prove hypersensitivity may be inconclusive. Patients should discontinue therapy with fluorouracil cream, 0.5% if symptoms of DPD enzyme deficiency develop. Rarely, unexpected systemic toxicity (e.g., stomatitis, diarrhea, neutropenia, neurotoxicity) associated with parenteral administration of fluorouracil has been attributed to deficiency of dihydropyrimidine dehydrogenase “DPD” activity. One case of life-threatening systemic toxicity has been reported with the topical use of 5% fluorouracil in a patient with a complete absence of DPD enzyme activity. Symptoms included severe abdominal pain, bloody diarrhea, vomiting, fever, and chills. CONTRAINDICATIONS Fluorouracil may cause fetal harm when administered to a pregnant woman. Fluorouracil is contraindicated in women who are or may become pregnant. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to the fetus.
Pregnancy
Pregnancy See CONTRAINDICATIONS.
Storage
HOW SUPPLIED Fluorouracil Cream, 0.5%, is a white to off-white cream, supplied as follows: NDC 75907-169-11: 30 g tube Store at 20°C to 25°C (68°F to 77°F) [see USP Controlled Room Temperature].
Frequently Asked Questions
What is Fluorouracil Cream, 0.5% used for?▼
INDICATIONS AND USAGE Fluorouracil cream, 0.5% is indicated for the topical treatment of multiple actinic or solar keratoses of the face and anterior scalp.
What are the side effects of Fluorouracil Cream, 0.5%?▼
ADVERSE REACTIONS The following were adverse events considered to be drug related and occurring with a frequency of 1% with fluorouracil cream, 0.5%: application site reaction (94.6%), and eye irritation (5.4%). The signs and symptoms of facial irritation (i.e., application site reaction) are presented below. Summary of Facial Irritation Signs and Symptoms - Pooled Phase 3 Studies Clinical Sign or Symptom Active 1 Week N=85 Active 2 Week N=87 Active 4 Week N=85 ALL Active Treatments N=257 Vehicle Treatments N=127 n (%) n (%) n (%) n (%) n (%) Erythema 76 (89.4) 82 (94.3) 82 (96.5) 240 (93.4) 76 (59.8) Dryness 59 (69.4) 76 (87.4) 79 (92.9) 214 (83.3) 60 (47.2) Burning 51 (60.0) 70 (80.5) 71 (83.5) 192 (74.7) 28 (22.0) Erosion 21 (24.7) 38 (43.7) 54 (63.5) 113 (44.0) 17 (13.4) Pain 26 (30.6)...
Can I take Fluorouracil Cream, 0.5% during pregnancy?▼
Pregnancy See CONTRAINDICATIONS.
What are the important warnings for Fluorouracil Cream, 0.5%?▼
WARNINGS The potential for a delayed hypersensitivity reaction to fluorouracil exists. Patch testing to prove hypersensitivity may be inconclusive. Patients should discontinue therapy with fluorouracil cream, 0.5% if symptoms of DPD enzyme deficiency develop. Rarely, unexpected systemic toxicity (e.g., stomatitis, diarrhea, neutropenia, neurotoxicity) associated with parenteral administration of fluorouracil has been attributed to deficiency of dihydropyrimidine dehydrogenase “DPD” activity. One case of life-threatening systemic toxicity has been reported with the topical use of 5% fluorouracil in a patient with a complete absence of DPD enzyme activity. Symptoms included severe abdominal pain, bloody diarrhea, vomiting, fever, and chills. CONTRAINDICATIONS Fluorouracil may cause fetal harm when administered to a pregnant woman. Fluorouracil is contraindicated in women who are or may become pregnant. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to the fetus.
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.