1. Paradoxical urticaria to H1‐antihistamines.
- Author
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Soria, Angèle, Kurihara, Flore, Amsler, Emmanuelle, Bréhon, Alice, Autegarden, Jean Eric, and Barbaud, Annick
- Subjects
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INFORMED consent (Medical law) , *SKIN tests , *ALLERGIC conjunctivitis , *DRUG allergy , *HISTAMINE receptors , *URTICARIA - Abstract
This document is a letter to the editor discussing paradoxical urticaria reactions to H1-antihistamines. The authors report on nine patients with paradoxical urticaria who experienced hives from different classes of H1-antihistamines. The cause of this reaction is still unclear, but it may be related to mast cell degranulation or disruption of the arachidonic acid metabolism pathway. Physicians should be aware of this diagnosis and perform an allergy work-up, including skin testing, in patients suspected of having paradoxical urticaria. The letter includes a table summarizing the clinical characteristics and allergy work-up of the identified cases. [Extracted from the article]
- Published
- 2024
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