Lopadine DS 5 ml is an antihistamine medication that contains the active ingredient desloratadine, which is used to relieve allergy symptoms such as sneezing, runny or itchy nose, and itchy or watery eyes. It is particularly effective in treating allergic rhinitis and chronic urticaria (hives). Lopadine DS is typically administered in a liquid form, making it suitable for both adults and children, and is usually taken once daily. The medication works by blocking the action of histamine, a substance in the body that causes allergic symptoms, providing relief without causing significant sedation.