Mirena

Mirena® (levonorgestrel-releasing intrauterine system) consists of a t-shaped polyethylene frame (t-body) with a steroid reservoir (hormone elastomer core) around the vertical stem. the reservoir consists of a white or almost white cylinder, made of a mixture of levonorgestrel and silicone (polydimethylsiloxane), containing a total of 52 mg levonorgestrel.

Mirena® is an intrauterine contraceptive (IUC) used to provide long-term birth control. It is a small, flexible polyethylene (plastic) device that contains levonorgestrel, a progesterone hormone.