Capimune is a medication commonly prescribed for the prevention of organ rejection in patients who have undergone kidney, liver, or heart transplants. It is an immunosuppressant that works by weakening the body's immune system to help the body accept the new organ as if it were its own. The active ingredient in Capimune is cyclosporine, which specifically targets and suppresses certain cells in the immune system that would otherwise attack the transplanted organ. By doing so, Capimune significantly reduces the risk of organ rejection, a critical aspect of post-transplant care. It is essential for patients taking Capimune to follow their healthcare provider's instructions closely, including regular monitoring of blood levels and kidney function, to ensure the medication's effectiveness and minimize potential side effects.