Related Experiment Video
Updated: Jul 15, 2026

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
Published on: March 3, 2023
[Effect of loratadine in children with allergic rhinitis]
Abstract:
The authors examined 25 children with allergic rhinitis, who were sensitive to grass, weed and tree pollens. During the allergic season nasal lavage was performed then repeated after 4 weeks of loratadine treatment. Tryptase, IL-5, ECP, TNF-alpha and RANTES levels were measured from the nasal lavage fluid. Tryptase, IL-5, and ECP levels were decreased significantly while the decrease of RANTES and TNF-alpha levels was not significant. The authors emphasize that loratadine is an effective anti-inflammatory drug which affects the early and late phase of immediate hypersensitivity. In the moderate cases loratadine is enough to relieve the symptoms, while in the severe forms anti-allergic eye drops and nasal antihistamine or steroid spray has to be added.
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