A Multicenter Randomized Double-Blind 2-Week Comparison Study of Azelastine Nasal Spray 0.1% versus Levocabastine Nasal Spray 0.05% in Patients with Moderate-to-Severe Allergic Rhinitis

Journal for Oto-Rhino-Laryngology, Head and Neck Surgery, 08/15/2011

Both azelastine hydrochloride nasal spray(ANS) and levocabastine hydrochloride nasal spray(LNS) were effective and safe in the treatment of moderate–to–severe persistent allergic rhinitis. Moreover, LNS reached a higher symptom relief rate within 30 min of administering the first dose.

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