Used in medical research and treatment, particularly in oncology. It is combined with interleukin-2 (IL-2) to treat advanced melanoma by stimulating the immune system. The compound helps prevent oxidative damage to immune cells, especially natural killer (NK) cells and T-cells, enhancing their activity against cancer cells. It is also studied for its role in modulating immune responses in other conditions, including leukemia. Its ability to bind to histamine receptors on immune cells makes it a key agent in immunomodulatory therapies.