everolimus

noun

ev·​e·​ro·​li·​mus ˌe-və-ˈrō-lə-məs 

: an immunosuppressive drug C₅₃H₈₃NO₁₄ that is a derivative of sirolimus and is administered orally especially to prevent rejection of transplanted organs and to treat some advanced forms of cancer

The new drug, called everolimus, was created to tamp down the immune system so the body does not reject a new organ.

—Janet McConnaughey, Associated Press

Note: Everolimus is marketed under the trademark Zortress when used to prevent transplanted organ rejection, and under the trademark Afinitor when used to treat cancer.