How to Naturally Eliminate the Side Effects of the Mirena IUD, Such as Bleeding & Weight Gain, and Overcome the Mirena Crash WHAT IS MIRENA? Manufactured by Bayer Pharmaceuticals, Mirena is a small flexible, T-shaped plastic IUD device. This device is placed in the uterus where it slowly releases the synthetic female hormone levonorgestrel, a … Continue reading How to Eliminate Side Effects of the Mirena IUD Such as Bleeding & Weight Gain – A Mirena Crash Remedy