Copper
"As everyone else said the effectiveness of this is for me 100%. I did not get on this medication till I started a serious relationship with my boyfriend and I've always used condoms. The IUD it's very effective and not noticeable at all. At first when I got it implanted it was very painful, I've never had kids so that is one reason it was. I thought that them putting it in was not even close to as bad as the next 48hrs. I do not mean to scare anyone but I had to take 800mg of Advil for 3 days after and I could tell when it was wearing off. I could not walk at times. But all of the pain is worth it. The hormones free is also with it"