RT Journal Article SR Electronic T1 Keep on Keeping on – Mirena IUD for 8 Years JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 1143 OP 1145 DO 10.3122/jabfm.2024.240037R0 VO 37 IS 6 A1 McNair, Samuel Holt A1 Tunink, Carl A1 Morris, Laura A2 Brown, Carina YR 2024 UL http://www.jabfm.org/content/37/6/1143.abstract AB Counsel patients that their Mirena IUD retains contraceptive effectiveness for extended use up to 8 years.1 The cumulative failure rate for years 6 through 8 was 0.68%, similar to reported rates for the first 5 years of use.