tacrolimus

Tacrolimus (Astagraf XL, Envarsus XR, Prograf) is used along with other medications to prevent rejection (attack of a transplanted organ by the immune system of a person receiving the organ) in people who have received a kidney transplant. Tacrolimus (Prograf) is also used along with other medications to prevent rejection in people who have received a liver, lung, or heart transplant. Tacrolimus is in a class of medications called immunosupressants. It works by decreasing the activity of the immune system to prevent it from attacking the transplanted organ.