Allergic contact dermatitis to cinchocaine.

Abstract

A case of allergic contact dermatitis to cinchocaine is presented to highlight the confusion regarding the classification of, and cross-reactivity between, topical anaesthetic agents and the inadequacy of the use of benzocaine as a single screening agent for topical anaesthetic contact allergy. Our patient presented with a 10-day history of acute perianal dermatitis. Allergic contact dermatitis to Proctosedyl ointment, which was applied for 3 weeks prior, was suspected. On patch testing, he reacted to cinchocaine, a constituent of Proctosedyl ointment, and to the actual product, but had no reaction to benzocaine or lignocaine.

• Authors: C R Kearney, J Fewings
• Journal: The Australasian journal of dermatology (Australas J Dermatol) Vol. 42 Issue 2 Pg. 118-9 (May 2001) ISSN: 0004-8380 [Print] Australia
• PMID: 11309035 (Publication Type: Case Reports, Journal Article)

Chemical References

• Anesthetics, Local
• Dibucaine

Topics

• Administration, Topical
• Aged
• Anesthetics, Local (administration & dosage, adverse effects)
• Dibucaine (administration & dosage, adverse effects)
• Drug Eruptions (diagnosis, etiology)
• Follow-Up Studies
• Humans
• Male
• Patch Tests
• Risk Assessment