What is A Mirena?

The Mirena IUD (intrauterine device) is one of the most effective forms of birth control with an efficacy rate of 99% in preventing pregnancy for up to five years. It is now the most commonly used form of contraception in Australia. It works by a low dose progestin released into the uterus, inhibiting sperm movement so it is more difficult to reach and fertilise the egg. It is also used to treat heavy and painful periods, reducing a period to spotting for some women and ceasing periods altogether for others.

  • Small and T-shaped
  • Made of soft, flexible plastic
  • Slow release low dose levonorgestrel, a type of progestin that is often used in birth control pills
  • Placed in your uterus by a healthcare professional who can remove it at any time in case your plans change
  • 1 Mirena for 7 years vs 2,555 birth control pills for 7 years
  • Can be used whether or not you’ve had a baby

How is a Mirena inserted?

Having a Mirena is similar to having a CST (Pap smear) but will take between 15 minutes and half an hour. A Mirena is usually scheduled for a time when you are not having your period but bleeding does not mean it cannot be done.

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After the procedure:

It is important to read through the information booklet given to you which includes symptoms to expect following the Mirena insertion. We recommend that you do no drive for at least 15 minutes after the insertion. Very rarely, procedures on the cervix can trigger a simple faint. Provided you have no reactions to Panadol or Nurofen these can also safely be used following the insertion.

Use alternative contraception for seven days, after which the Mirena will then be providing contraception reliably.

Looking after yourself after treatment:

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