Undecylenic Acid

Table of contents

  • Brand Names
  • Drug Combinations
  • Chemistry
  • Pharmacologic Category
  • Mechanism of Action
  • Therapeutic Use
  • Contraindications
  • Warnings and Precautions
  • Adverse Reactions
  • Drug Interactions
  • Dosage
  • Special Considerations

Brand Names


France: Mycodecyl; Italy: Micofoot; Poland: Mykodermina; Slovakia: Mykoseptin.

Latin America

Argentina: Umasam; Mexico: Dermán.


Japan: Renselin.

Drug combinations

Undecylenic Acid and Thioconazole


Undecylenic Acid: C~11~H~20~O~2~. Mw: 184.28. 10-Undecenoic acid. CAS-112-38-9.

Pharmacologic Category

Skin and Mucous Membrane Agents; Antifungals, Miscellaneous; Topical Antifungal Agent. (ATC-Code: D01AE04).

Mechanism of action

Retards proliferation of fungus by altering conditions of growth.

Therapeutic use

Treatment of athlete’s foot (tinea pedis), ringworm (except nails and scalp), prickly heat, jock itch (tinea cruris), diaper rash, and other minor skin irritations due to superficial dermatophytes.

Pregnancy and lactiation implications

Unlabeled use


Hypersensitivity to undecylenic acid and derivatives or any component. Fungal infections of scalp or nails.

Warnings and precautions

Sensitivity or irritation might occur. Not for self-medication in children <2 years of age. For topical use only.



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