Which among the following is/are not a copper releasing IUDs?
Both B and C
LNG - 20 (Mirena): This T shaped device has a collar attached to vertical arm containing 52 mg of levonorgestrel dispersed in polydimethylsiloxane. It releases 15μg of levonorgestrel per day in vivo and is effective for 7-10 years.
Lippes loop: This device is made of plastic or stainless steel and do not release copper ions.
Copper -T (Cu-T): It is a T shaped device with a polyethylene frame holding a exposed surface area of copper.