Fixed Drug Eruption Due to Selective Hypersensitivity to Naproxen with Tolerance to other Propionic Acid NSAIDs

Author(s): Blanca Noguerado-Mellado, Abdonias R. Gamboa, Patricia R. Perez-Ezquerra, Cristina M. Cabeza, Roberto P. Fernandez, Manuel De Barrio Fernandez.

Journal Name: Recent Patents on Inflammation & Allergy Drug Discovery

Volume 10 , Issue 1 , 2016

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Abstract:

Background: Naproxen is a non-steroidal anti-inflammatory drug (NSAID), belonging to propionic acid group, and its chemical structure is a 6-metoxi-metil-2-naftalenoacetic acid. Fixed drug eruptions (FDE) have been rarely reported.

Objective: A 38-year-old woman referred that after 2 hours of taking 2 tablets of naproxen for a headache, she developed several edematous and dusky-red macules, one on right forearm and the other two in both thighs and she was diagnosed with FDE probably due to naproxen.

Methods: We performed patch testing (PT) (Nonweven Patch Test Strips Curatest®; Lohman & Rauscher International, Rangsdorf, Germany), with ibuprofen (5% Petrolatum), ketoprofen (2.5% Petrolatum), naproxen and nabumetone (both 10% in DMSO) on the residual lesion of the forearm with naproxen and in both thighs with ibuprofen, ketoprofen and nabumetone.

Results: Readings at day 1 (D1) and day 2 (D2) showed negative results to ibuprofen, ketoprofen and nabumetone, but were positive to naproxen in D1.

A single blind oral challenge test (SBOCT) with other propionic acid derivates were performed in order to check for crossreactivity between them: ibuprofen, ketoprofen and nabumetone were administered and all drugs were well tolerated.

Conclusion: In our patient PT confirmed the diagnosis and allowed us to study the cross-reactivity between NSAIDs of the same group, and confirmed by SBOCT. Cross-reactivity between propionic acid derivatives was studied. This is a case of hypersensitivity to naproxen with good tolerance to other propionic acids NSAIDs (ibuprofen and ketoprofen) and nabumetone, confirmed by PT and SBOCT. Some relavent patents for fixed drug eruption are discussed.

Keywords: Cross-reactivity, drug allergy, fixed drug eruption, nabumetone, naproxen and NSAIDs.

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Article Details

VOLUME: 10
ISSUE: 1
Year: 2016
Page: [61 - 63]
Pages: 3
DOI: 10.2174/1872213X10999160404115504
Price: $58

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