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.

Heavy Period

Mirena may also affect heavy periods in other ways

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 professional if bleeding remains heavier than usual or you do not have a period for 6 weeks during Mirena use.

After your body adjusts, the number of bleeding and spotting days is likely to decrease, but may remain irregular, and you may even find that your periods stop altogether for as long as Mirena is in place. By the end of year one, about 20% of users have no period at all. Your periods will return once Mirena is removed.