Question: is mirena a copper iud?
Answer: It's wrapped in a tiny bit of copper, and it protects you from pregnancy for up to 12 years. The Mirena, Kyleena, Liletta, and Skyla IUDs use the hormone progestin to prevent pregnancy. Progestin is very similar to the hormone progesterone that our bodies make naturally. Mirena works for up to 7 years.