All IUSs are not the same
The hormonal IUS and copper IUD look very similar, but work in very different ways:
| Hormonal IUS | Copper IUD | |
| How do they work? | The hormone progestin is released directly into the uterus
Thickening of the mucus in the cervix Reduction of the uterine lining Sperm are inhibited in their mobility and function |
Copper ions inhibit sperm movement |
| How safe are they? | Less than 1 woman in 100 becomes pregnant within one year | Less than 1 woman in 100 becomes pregnant within one year |
| How tolerable are they? | Menstruation becomes lighter and less painful
Intermittent bleeding possible at first Protection against inflammation |
Longer and heavier bleeding;
No protection against inflammation |
| How much do they cost? | € 400 to – € 600; Approx. € 7.- to € 13.-/month with lower costs for monthly hygiene |
€ 250 to € 400 per month. Additional costs for monthly hygiene |
| How long do they last? | 3 years – Jaydess®
4 years – Levosert® 5 years – Mirena® Kyleena® |
5-10 years |