Abstract Introduction Oral antihistamines and intranasal corticosteroids have been shown to be effective and safe for the treatment of allergic rhinitis; however. the evidence suggests a level of superiority of corticosteroids. so they should be preferred over the former. Objective To know the prescription profile of two second generation antihistamines (cetirizine and levocetirizine)... https://powerlands.shop/product-category/battery-powered-generators/