A modern lifestyle and environmental factors trigger the presence of various allergens that cause unpleasant symptoms for sufferers. To manage allergic reactions, various medications are available, among which loratadine and cetirizine (Zyrtec) are among the most commonly used antihistamines. These preparations can help reduce allergic symptoms such as sneezing, runny nose, and itchy eyes. Loratadine: Mechanism of Action and Application Loratadine is a second-generation antihistamine primarily used to treat allergic rhinitis and chronic urticaria. Its mechanism of action lies in blocking the histamine H1 receptors that are activated during allergic reactions. Histamine is a compound released by the body in response to allergens, causing numerous unpleasant symptoms such as itching,…