Azelastine
Products Azelastine is available as a nasal spray and in eye drop form (eg, Allergodil, Dymista + fluticasone, generics). It has been approved in many countries since 1994. Structure and properties Azelastine (C22H24ClN3O, Mr = 381.9 g/mol) is present in drugs as azelastine hydrochloride, a white to almost white crystalline powder. It is a phthalazinone … Azelastine