Used primarily as an immunomodulator to enhance the body's immune response. It is commonly applied in the treatment of viral infections such as influenza, herpes simplex, and shingles. Helps reduce the severity and duration of symptoms by stimulating the production of interferons and enhancing T-cell activity. Also used in managing recurrent respiratory tract infections and certain chronic viral conditions. Its mechanism supports the body’s natural defenses, making it useful as an adjunct therapy in immunocompromised patients.