is a potent, second-generation, selective, histamine antagonist
(histamine-H<sub>1</sub>-receptor antagonist) manufactured by MedaPharma
. According to the Allergic Rhinitis and its Impact on Asthma (ARIA) treatment guidelines, intranasal anti-histamines are recommended for the first line therapy of mild intermittent, moderate/severe intermittent and mild persistent rhinitis
(new classification system for rhinitis).
The chemical nomenclature of azelastine is (±)-1-(2H)-phthalazinone, 4--2-(hexahydro-1-methyl-1H-azepin-4-yl)-monohydrochloride. It is white, almost odorless with a bitter taste.
Azelastine has been formulated both as a nasal spray
(0.1% and 0.15% solutions) and as eye drops
(0.05% solution). The nasal spray has been approved in over 60 countries and is marketed under various brand names including Allergodil
in mainland Europe, Rhinolast
in the UK and Astelin/Astepro
in the US. The eye drops have been launched in over 30 countries including the UK (Optilast
) and the USA (Optivar
). The nasal spray and eye drops are available over the counter in some countries.
Azelastine nasal spray is indicated for the local treatment of the symptoms of seasonal allergic rhinitis
and perennial allergic rhinitis
, such as rhinorrhea
, sneezing and nasal pruritis
in adults and children 5 years of age and older. In... Read More