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

For women with heavy periods, bleeding may be reduced with Mirena®

If you choose Mirena to prevent pregnancy, it's the only intrauterine birth control that’s approved to treat heavy periods, also known as heavy menstrual bleeding, or HMB.

HMB is defined as excessive menstrual blood loss totaling 80 mL or more (approximately 6 tablespoons) in a single cycle.

You may have HMB if you:

Wear both a tampon and a pad for double protection

Soak through a pad or tampon every 2 to 3 hours

Have ever stained your clothes as a result of a heavy period

Have to get up in the middle of the night to change your pad or tampon

Sleep with a towel for extra protection

In a clinical trial of Mirena in women with heavy periods, the majority had an 80% reduction in bleeding as early as 3 months, and a greater than 90% reduction at 6 months.

Mirena® and your period

Mirena may also affect heavy periods in other ways

In some women with heavy bleeding, the total blood loss per cycle progressively decreases with continued use. The number of spotting and bleeding days may initially increase but then typically decrease in the months that follow. Bleeding may also continue to be irregular. Call your healthcare provider if bleeding becomes heavy after it has been light for a while. About 20% of women may have no period at all at the end of one year of use with Mirena.