What is Mirena?

Mirena is an hormonal intrauterine device (IUD) that serves as a long-term and reversible birth control mechanism.  It is manufactured by Bayer Pharmaceuticals.  This device is implanted in the uterus of the patient and releases hormones directly to the uterus.  

The device is highly effective at preventing pregnancy but may cause some serious injuries.  Mirena may adhere to or perforate the uterine wall when migrating or moving from the implant site.  Additionally, the Food and Drug Administration (FDA) has received reports of neurological damage caused by the hormone used in Mirena including idiopathic intracranial hypertension or pseudotumor cerebri.