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Mirena and Idiopathic Intracranial Hypertension (IIH)


If you used Mirena to prevent pregnancy and developed idiopathic intracranial hypertension (IIH), you are not alone. This devastating disease can cause excruciating headaches, progressive vision loss, and may need to be treated with surgery.

Over 100+ Mirena Intracranial Hypertension Lawsuits

Bayer Healthcare is facing over 100 lawsuits from women who used Mirena and developed Idiopathic Intracranial Hypertension (IIH) or Pseudotumor Cerebri (PTC). Lawyers have asked a panel of federal judges to create a Multi-District Litigation (MDL) to centralize the lawsuits in federal court.

What is Mirena?

Mirena is an intrauterine device (IUD) that is designed to prevent pregnancy by slowly releasing the hormone levonorgestrel into a woman’s uterus for up to five years. Although no one knows what causes IIH, levonorgestrel-only implants have been linked to case reports.

What is the problem?

Evidence linking Mirena and IIH is concerning because the Prescribing Information for Mirena lacks warnings about neurological side effects. This could potentially delay diagnosis and treatment or worsen long-term prognosis. Lawsuits filed against Bayer accuse the company of downplaying this serious risk information.

What is Idiopathic Intracranial Hypertension (IIH)?

Idiopathic intracranial hypertension (IIH) is a rare but serious medical condition in which elevated levels of cerebrospinal fluid inside the skull put pressure on the brain. The condition mimics the effects of a growing tumor, which is why it is sometimes known as pseudotumor cerebri (PTC). The condition can cause permanent vision loss, blindness, headaches, and damage to the optic nerve.

Symptoms of IIH

  • Headache: Severe or dull, typically located at the back of the head, may be worst first thing in the morning or at night, may worsen by changing position.
  • Vision problems: Blurry vision, double-vision, blind spot, loss of peripheral vision, progressive vision loss, blindness.
  • Tinnitus: Hearing problems may include ringing or “whooshing” noises in the ear.
  • Nausea, vomiting

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