Dear Editor,
Medication adherence is a crucial factor in the effectiveness and safety of medicines and is particularly critical for patients undergoing chronic treatments. Non-adherence is also a major concern among healthcare systems worldwide. Around 50% of patients with a chronic disease do not adhere to their therapeutic regimen, making non-adherence a widespread health problem, with a significant impact on healthcare systems. In Europe alone, non-adherence has shown to contribute to nearly 200 000 premature deaths, with costs rising to €125 billion per year in avoidable hospitalizations, emergency care, and outpatient visits.