Immunosuppressant drug inhibiting the action oh IL-3 without inhibiting it's transaction is

Ref-Katzung 10/e p918 Sirolimus, also known as rapamycin, is a macrolide compound that is used to coat coronary stents, prevent organ transplant rejection and to treat a rare lung disease called lymphangioleiomyomatosis. It has immunosuppressant functions in humans and is especially useful in preventing the rejection of kidney transplants.