Undecylenic Acid

Generic Name: undecylenic acid

Over-the-Counter (OTC)

Brand Names:

Sfeixe Antifungal Pen

OTC antifungal product containing undecylenic acid 25% for the treatment of athlete's foot and ringworm.

Overview

OTC antifungal product containing undecylenic acid 25% for the treatment of athlete's foot and ringworm.

Uses

Cures most athlete's foot (tinea pedis) and ringworm (tinea corporis). Relieves itching, scaling, cracking, and burning. Not effective for ringworm of the scalp or nails.

Dosage

For athlete's foot and ringworm: use daily for 4 weeks. Clean the affected area and dry thoroughly. Apply a thin layer to the affected area. Pay special attention to spaces between the toes for athlete's foot.

Warnings

For external use only. Do not use on children under 2 years of age unless directed by a doctor. When using this product, avoid contact with eyes. Keep out of reach of children.

Frequently Asked Questions

What is Undecylenic Acid used for?

Cures most athlete's foot (tinea pedis) and ringworm (tinea corporis). Relieves itching, scaling, cracking, and burning. Not effective for ringworm of the scalp or nails.

What are the important warnings for Undecylenic Acid?

For external use only. Do not use on children under 2 years of age unless directed by a doctor. When using this product, avoid contact with eyes. Keep out of reach of children.

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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.