Mirena is an intrauterine system (IUS), a small plastic t-shaped device that is placed in your uterus (womb) by a trained healthcare professional. It may have been prescribed to you for one or more of the following;
If symptoms do not return after 5 years of use, Mirena can be considered for continued use for up to 8 for HMB.
Mirena slowly releases a small amount of hormone, a progesterone called levonorgestrel into your uterus.
As Mirena is placed in the womb, it works right where it is needed and only small amounts of hormones will enter your bloodstream. Ovulation (the release of an egg from the ovaries) usually continues while using Mirena.
The Mirena can be removed sooner if you wish, you can find out about the removal of a Mirena here.
The hormone released into your uterus by Mirena prevents pregnancy by:
The hormone released into your uterus by Mirena treats heavy menstrual bleeding by:
Mirena can be used in conjunction with oestrogen as part of a hormone replacement therapy (HRT) regimen.
Mirena provides protection to the lining of your womb (endometrium) during HRT. You may hear your healthcare professional refer to this as endometrial protection.
The hormone released into your uterus by Mirena provides endometrial protection by:
Mirena may be suitable for a variety of women, regardless of whether you've had a baby or not It's suitable for women of different reproductive ages, including women who are going through the menopause.
PP-MIR-GB-0186 January 2024
Mirena® (levonorgestrel-releasing intrauterine system) is a hormone-releasing IUS that helps prevent pregnancy for up to 8 years. Mirena also treats heavy periods for up to 5 years in women. If symptoms do not return after five years of use, Mirena can be considered for continued use for up to eight years. Mirena provides endometrial protection for up to 4 years.
Mirena does not protect against HIV or STIs.
Only you and your HCP can decide if Mirena is right for you. Mirena is available by prescription only.
Reporting adverse events and quality complaints
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in the package leaflet. You can also report side effects directly via the yellow card scheme at www.mhra.gov.uk/yellowcard.
By reporting side effects, you can help provide more information on the safety of this medicine.