Mirena trademark (levonorgestrel-releasing intrauterine system) 52 mg

Important Safety Information

If you have a pelvic infection, get infections easily, or have certain cancers, don't use Mirena. Less than 1% of users get a serious pelvic infection called pelvic inflammatory disease (PID). If you have persistent pelvic or stomach pain or if Mirena comes out, tell your healthcare provider (HCP)... Continue below

Effective birth control without a daily pill

Mirena® is a hormone-releasing IUD that is over 99% effective at preventing pregnancy for as long as you want, for up to 5 years. Mirena can be used whether or not you have had a child. Mirena also treats heavy periods in women who choose intrauterine contraception.

What is Mirena?

Mirena is a small, T-shaped intrauterine device (IUD).

Placed into the uterus by a trained healthcare provider during an office visit

You should do a monthly thread check to make sure it's in place—ask your healthcare provider to explain how

Placement of Mirena is nonsurgical

Reversible, so you can have it removed at any time and try to become pregnant right away

Placement takes only a few minutes

Everyone is different, and some women may experience discomfort, dizziness, or spotting during and after placement. These symptoms should go away shortly. If they don’t, contact your healthcare provider, as Mirena may not have been properly placed. Within 4 to 6 weeks, you should return for a follow-up visit to make sure that everything is okay.

Mirena IUD in hand up close

How does Mirena work to prevent pregnancy?

Mirena is an IUD that releases small amounts of a progestin hormone called levonorgestrel into the uterus.

Mirena may work in several ways:

However, it is not known exactly how these actions work together to prevent pregnancy.


Mirena® IUD placement

Mirena is one of the most effective low-maintenance birth control options

Generally, the less you have to do, the more effective the birth control method tends to be.

Mirena is birth control you don't have to think about every day or even every year. Once it’s placed, just do a monthly thread check to make sure it’s in the correct position. Ask your healthcare provider to explain how.

Chart of birth control effectiveness
Did you know?
Mirena IUD in palm of hand
IUDs are considered one of the most effective forms of birth control by The American College of Obstetricians and Gynecologists (ACOG).