What is it? Mirena is a hormone-releasing intrauterine device (IUD) that is placed in your uterus to prevent pregnancy, and is 99% effective birth control for up to five years. An IUD is a small, t-shaped device that’s placed in your uterus by your OB/GYN during a routine visit. Getting an IUD is nonsurgical and typically takes just a few minutes. Once in place, it provides continuous, highly effective birth control.

How does it work? Mirena works by releasing a steady level of the hormone levonorgestrel into the uterus and preventing sperm from passing into the cervix. It is made of soft, flexible plastic. You can make sure Mirena is in place with a simple monthly check. Your healthcare provider can show you how.


  • Over 99% effective at preventing pregnancy
  • Can last up to 5 years
  • Once Mirena is placed by a healthcare provider it is virtually hassle-free without the daily or weekly worries of remembering to use a birth control method
  • Completely reversible and can be removed by your OB/GYN at any time if you change your mind, so you can try to get pregnant right away
  • Can be used to treat polycystic ovarian syndrome, Menorrhagia (can cause anemia), and other health related conditions.
  • Safe for women who are breastfeeding or already have children.
  • Possible that you may experience fewer, lighter periods


  •  Mirena does not protect against STDs and HIV / AIDS.
  •  Irregular periods, especially in the first 6 months
  •  After 1 year, may experience no period at all
  •  Possible cramping

For more information about Mirena visit www.mirena-us.com.

Actual size when compared to a paper clip.