Intrauterine device (IUD) with progestogen, sold under the brand name Mirena among others, is a intrauterine device that releases the hormone levonorgestrel.[2] It is used for birth control, heavy menstrual periods, and to prevent excessive build of the lining of the uterus in those on estrogen replacement therapy.[2] It is one of the most effective forms of birth control with a one-year failure rate around 0.2%.[1] The device is placed in the uterus and lasts three to five years.[3] Following removal fertility returns quickly.[2]