Seasonal rhinitis and azelastine: long- or short-term treatment?

Abstract

BACKGROUND Azelastine is a topical antihistamine, clinically demonstrated to be effective in allergic rhinitis. OBJECTIVE We evaluated the clinical efficacy and the antiallergic activity of azelastine nasal spray, administered 0.56 mg per day, 0.28 mg per day, or on demand over a 3-month period during natural allergen exposure, in a double-blind, placebo… (More)

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