Mirena Dosage

Mirena Insertion

Your healthcare provider will insert Mirena into your uterus using a small tube. The tube will be inserted into your vagina, through your cervix (the opening from the vagina to the uterus), and into your uterus. Once Mirena is in place, the insertion tube is removed, leaving Mirena in your uterus and the removal threads (which are attached to Mirena) in your vagina. Before Mirena is inserted, your healthcare provider will clean your vagina and cervix with an antiseptic solution, in order to prevent an infection. Your healthcare provider may or may not choose to inject a little anesthetic into your cervix, depending on whether it is expected that you might feel pain (based on several factors, such as the narrowness of your cervix).
You will return to your healthcare provider within three months (usually after your first period) to make sure that Mirena is inserted properly. Although Mirena is made of plastic, barium is added to the device so that it will show up on an x-ray (if necessary). An ultrasound can also show the location of Mirena.

General Information on Mirena Dosage

Some considerations for people using Mirena include the following:
  • Your healthcare provider will carefully insert Mirena into your uterus within seven days after your period starts (or immediately after a first trimester abortion or miscarriage).
  • Mirena is inserted using a small tube (known as a catheter). Once Mirena is in place, the catheter is removed. Some women have cramps and dizziness while Mirena is being inserted.
  • Although Mirena can be left in place for up to five years, your healthcare provider can remove it any time before that. After five years (if you still want to use Mirena), your healthcare provider can remove the old Mirena and replace it with a new one.
  • You will not feel the device in your body (it will be placed safely in your uterus). However, you will be able to feel the removal threads at your cervix (the top of your vagina). Don't pull on the threads, as this could displace the device.
  • You can still use tampons while using Mirena.
  • After each menstrual period, it is a good idea to make sure Mirena is still in place. After washing your hands, feel to make sure the threads are still there. Make sure you don't feel any other part of the device. If you can't feel the threads (or if you feel other parts of the device), let your healthcare provider know right away and use a backup method of birth control (such as condoms) until your healthcare provider gives you further instructions.
  • If you are unsure about anything related to your Mirena dosage, please talk to your doctor, nurse, or pharmacist.
Last reviewed by: Kristi Monson, PharmD
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