Bayer, the manufacturer of Mirena, has continued to promote and sell the intrauterine device in spite of the numerous lawsuits filed against the company by Mirena users. Women who have suffered injuries or pregnancy complications after using Mirena have accused Bayer of failing to properly warn then about the risk of side effects of the device.
Bayer’s continued promotion and sale of Mirena is not the first time that questions have been raised about its marketing of the IUD. In 2009, the Food and Drug Administration sent a warning letter to the company alleging that Bayer’s marketing campaign for Mirena overstated the effectiveness of the device while downplaying the risk of side effects.
According to the FDA, more than 45,000 Adverse Event Reports have been filed with the agency by women who have experienced problems with Mirena. Some of the most serious side effects associated with the use of Mirena include perforation of the uterine wall or other organs, infections, and adhesions. In some cases, the device can migrate outside of the uterus or become imbedded in the uterine wall, requiring surgical repair.
Mirena can also cause complications for women who become pregnant while using the device. According to warnings by the FDA, about 50% of pregnancies that occur among Mirena users are ectopic pregnancies in which the fetus develops outside of the uterus, putting the mother’s health in danger. Mirena can also increase the risk of miscarriages and may cause permanent infertility.