Mirena® vs Other Birth Control Methods

Want to compare different types of birth control with Mirena (levonorgestrel-releasing intrauterine system), an intrauterine contraceptive?

The chart below shows the chance of getting pregnant for women who use different methods of birth control. The most effective methods, including intrauterine devices such as Mirena, are found at the top of the chart. Unfortunately, no contraceptive is 100% effective. If you have any questions about this information, please ask your healthcare provider.

Fewer Pregnancies
Fewer than 1 pregnancy
per 100 women in 1 year
  • Implants
  • Injections
  • Intrauterine devices
  • Sterilization

  • Birth control pills
  • Skin patch
  • Vaginal ring with hormones

10-20 pregnancies
per 100 women in 1 year
  • Condoms
  • Diaphrams

  • No sex during the most fertile days of the monthly cycle
  • Spermicide
  • Withdrawal

85 or more pregnancies
per 100 women in 1 year
  • No birth control

More Pregnancies

No birth control is right for everyone and there are certain risks associated with Mirena that you should know about. For detailed information about possible side effects, some potentially serious, please see Safety with Mirena or click on Patient Prescribing Information.

Just The Facts

Just The Facts
Find out why Mirena might be a good choice for women who don't want to think about taking birth control every day.

Could Mirena Be Right
for You?

Could Mirena Be Right For You?
How does Mirena compare with other forms of birth control?


INDICATIONS & USAGE
Mirena (levonorgestrel-releasing intrauterine system) is a hormone-releasing system placed in your uterus to prevent pregnancy for as long as you want for up to 5 years. Mirena also treats heavy periods in women who choose intrauterine contraception.

IMPORTANT SAFETY INFORMATION ABOUT MIRENA
Only you and your healthcare provider can decide if Mirena is right for you. Mirena is recommended for women who have had a child.

  • Don't use Mirena if you have a pelvic infection, get infections easily or have certain cancers. Less than 1% of users get a serious infection called pelvic inflammatory disease. If you have persistent pelvic or abdominal pain, see your healthcare provider.
  • Mirena may attach to or go through the wall of the uterus and cause other problems. If Mirena comes out, use back-up birth control and call your healthcare provider.
  • Although uncommon, pregnancy while using Mirena can be life threatening and may result in loss of pregnancy or fertility.
  • Ovarian cysts may occur and usually disappear.
  • Bleeding and spotting may increase in the first few months and continue to be irregular. Periods over time may become shorter, lighter or even stop.

Mirena does not protect against HIV or STDs.

You are encouraged to report negative side effects of prescription drugs to the FDA.
Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.

For important risk and use information, please see the patient prescribing information.

BAYER, the Bayer Cross, and Mirena are registered trademarks of Bayer.
myMirena and Keep Life Simple are trademarks of Bayer.


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