Mirena IUD

The Mirena IUD is the most commonly used IUD in Australia.

Frequently asked questions:

How effective is Mirena?

Mirena is 99.3% effective at preventing pregnancy (cumulatively over 5 years).

The contraceptive effects occur before conception.

It is completely reversible, so its use does not affect a woman's future fertility.

What effect does it have on my periods?

Mirena reduces the amount and length of menstruation

In women with heavy periods, menstrual blood loss is reduced by an average of 93%.

20% of women gradually develop no periods while on Mirena.

Irregular spotting or bleeding is common during the first few months of use. This gradually improves after 6 months.