In addition to that, with copper - releasing IUDs, the copper appears to be toxic to sperm, acting as a spermicide.
أَمَّا ٱلنَّوْعُ ٱلثَّانِي ،‏ فَهُوَ لَوْلَبٌ يُطْلِقُ هُرْمُونًا وَصَارَ مُتَوَفِّرًا عَامَ ٢٠٠١ .‏