Product name: Azelastine hydrochloride
Chemical name: 4-[(4-Chlorophenyl)methyl]-2-(1-methylazepan-4-yl)-phthalazin-1-one hydrochloride
Molecular Formula: C₂₂H₂₄ClN₃O.HCl
Molecular Weight: 418.36
CAS: 79307-93-0  153408-27-6  153408-28
Structural formula:

Azelastine hydrochloride, a long-acting anti-allergic antihistamines, which can not only histamine Hl receptor antagonist, but also has a certain anti-inflammatory effect. Azelastine hydrochloride can be not only used for itchy skin disease, bronchial asthma, but also be used to treat allergic rhinitis. Azelastine hydrochloride can be used in nasal spray, drugs can act directly on the nasal cavity, quickly play a therapeutic effect. Meanwhile, the local absorption through the nasal mucosa, play a role in long-term treatment. Azelastine hydrochloride has the effects of anti-inflammatory, anti-allergy and asthma, etc.