Mirena (levonorgestrel) is a brand-name intrauterine device (IUD) that’s prescribed to help prevent pregnancy and reduce heavy menstrual bleeding in adults and some adolescents. Mirena is inserted by ...
How Does Mirena Work for Birth Control? Mirena is a small, flexible plastic, T-shaped system that slowly releases small amounts of a progestin hormone (levonorgestrel) into your uterus. It is the same ...