ParaGard is an intrauterine device (IUD) that's inserted into the uterus for long-term birth control (contraception). The T-shaped plastic frame is wrapped with copper wire coils that continuously release copper to bathe the lining of the uterus. ParaGard produces an inflammatory reaction in the uterus that is toxic to sperm. If fertilization occurs, ParaGard keeps the fertilized egg from implanting in the lining of the uterus.

ParaGard is the only copper IUD available in the U.S. ParaGard prevents pregnancy for up to 10 years after insertion.

Jan. 21, 2012