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[Allergic contact dermatitis caused by etofenamate].
A Degenhardt1, C Zick, B M Hausen
1Dermatologische Untersuchungsstelle des Bundeswehrkrankenhauses Bad Zwischenahn.
Zeitschrift Fur Hautkrankheiten
|June 15, 1988
Summary
Etofenamate topical application can cause contact dermatitis, confirmed by patch tests. However, etofenamate contact sensitization appears to be rare despite its frequent use.
Area of Science:
- Dermatology
- Allergic Contact Dermatitis
- Pharmacovigilance
Background:
- Etofenamate is a non-steroidal anti-inflammatory drug (NSAID) commonly used topically for pain and inflammation.
- Topical NSAIDs can rarely cause adverse skin reactions, including allergic contact dermatitis.
- Understanding the sensitization potential of frequently used topical medications is crucial for patient safety.
Observation:
- Three patients presented with contact dermatitis after applying etofenamate.
- Patch testing revealed positive reactions to etofenamate at both 10% and 1% concentrations in all affected individuals.
- One patient experienced secondary inflammatory reactions at the initial application site post-testing.
Findings:
- The study confirms etofenamate as a potential contact allergen.
- Patch test results indicate a clear allergic response to etofenamate.
- Despite positive reactions, the overall incidence of contact sensitization to etofenamate is suggested to be low.
Implications:
- Clinicians should consider etofenamate-induced allergic contact dermatitis in patients with relevant symptoms.
- Patch testing is a valuable diagnostic tool for confirming etofenamate allergy.
- Further pharmacovigilance studies are warranted to accurately assess the prevalence of etofenamate sensitization.