An effective, long-acting and reversible method of contraception
The hormonal IUD or IUS (intrauterine system) is a small plastic device that prevents pregnancy for up to five years.
It looks quite similar to a non-hormonal IUD, but the main difference is that it contains hormones and works by steadily releasing small amounts of this hormone (progestin) into your body each day.
This process prevents any fertilised eggs settling down for pregnancy. This is not harmful and does not affect your long-term fertility. It stops working as soon as it is taken out.