Medication errors are a significant health problem and a serious threat to patient safety. In Norway, an estimated one-third of the elderly population has been exposed to potentially inappropriate medications. The Norwegian government has assumed a pivotal role in reducing medication errors and providing safer medication management for its citizens, particularly through the national eHealth system’s e-prescription and Summary Care Record. In the present study, we depart from the governmental eHealth initiatives and examine why access to pharmaceutical information is not sufficient to solve the problem with medication errors. Empirical data were collected from 2015 to 2019 through the conduction of 56 qualitative interviews that were transcribed, thematically coded and analysed. The results illustrate how eHealth systems are helpful, at the same time, we emphasise changed work practices and professional knowledge-sharing as a basis for solving the issue of medication errors.