at the institute of pharmaceutical sciences of Western Switzerland
Medication adherence is a key determinant of the ambulatory care system of the 21st century. It is defined as the process by which patients take their medications as prescribed. According to the World Health Organization (WHO), around 50% of chronic patients are nonadherent to their treatment worldwide (2003). This creates an endemic, medical and economic threat on the healthcare systems. Research is needed to better document the issue and its contributing factors as well as assess cost-effective, interprofessional adherence-enhancing programs to implement in clinical practice and envision new models of care.