Histop 2mg Syrup is a pharmaceutical product classified as an antihistamine. It works by blocking the action of histamine in the body, thereby reducing symptoms of allergic reactions. Histop 2mg Syrup is commonly prescribed for the treatment of allergic rhinitis, hay fever, and allergic skin conditions. It provides relief from symptoms such as sneezing, runny nose, itching, and hives. The syrup is known for its effectiveness in managing allergic reactions and improving the quality of life for individuals suffering from allergies.