RT Journal Article SR Electronic T1 Kyleena – another levonorgestrel IUS JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 18 OP 20 DO 10.1136/dtb.2018.2.0587 VO 56 IS 2 YR 2018 UL http://dtb.bmj.com/content/56/2/18.abstract AB A levonorgestrel (LNG) intrauterine system (IUS) known as Kyleena (Bayer PLC) received marketing authorisation from the European Medicines Agency in 2016.1 The device contains 19.5mg LNG and is licensed for contraception for up to 5 years. This is the fourth LNG IUS product to be licensed for use in the UK. The company states that Kyleena offers advantages over Mirena and Jaydess LNG IUS devices.2 Here we consider the evidence for Kyleena.