Lorfast 10 mg Tablet is an antihistamine medication containing Loratadine. It is commonly used to treat symptoms of allergic conditions, including seasonal and perennial allergic rhinitis (such as sneezing, runny nose, and itching), as well as chronic urticaria (hives), which causes itchy, raised skin rashes. This medication works by blocking histamine, a substance produced by the body during allergic reactions, helping to reduce symptoms and provide relief.