Introduction: Combined oral contraceptives (COCs) containing levonorgestrel are associated with the lowest risk of venous thromboembolism (VTE). The Norwegian Medicines Agency (NOMA) updated the guidelines in 2011 and recommends the low risk products to starters. Aim: The purpose of this study is to assess changes in prescription pattern of COCs to starters between 2008 and 2016 by provider in ...