يستعمل دواء ازيلاست 0.05% قطرة 5 ملazelast 0.05% eye drops 5 ml antihistamine antihistamine

description: -azelastine a phthalazine derivative is an antihistamine and mast cell stabilizer available as a nasal spray for hay fever and as eye drops for allergic conjunctivitis. - -indication : -for the symptomatic treatment of seasonal allergic rhinitis and non-allergic rhinitis as well as symptomatic relief of ocular itching associated with allergic conjunctivitis. - -mechanism of action: -azelastine competes with histamine for the h1-receptor sites on effector cells and acts as an antagonist by inhibiting the release of histamine and other mediators involved in the allergic response.