Intrauterine contraceptive device Status report
Chi, I Cheng
Advanced Drug Delivery Reviews 17(2): 165-178
1995
ISSN/ISBN: 0169-409X DOI: 10.1016/0169-409x(95)00085-lDocument Number: 499726
Intrauterine devices (IUDs) are a highly effective and safe method of contraception that do not require compliance once inserted. The failure rates of modern IUDs, such as the Copper T-380, the Multiload copper 375 and the IUD that releases 20 g levonorgestrel daily (LNG-IUD-20) are less than one pregnancy per 100 woman-years of use. Researchers have equated these efficacies with those of tubal sterilization and Norplant implants. IUDs' efficacies are long-lasting, and are easily reversible. In the present review, I will summarize findings that have been reported on issues and new developments concerning IUDs since 1991. Perspectives are also offered for future studies.