By Vijay Kumar Malesu Reviewed by Susha Cheriyedath, M.Sc. Feb 5 2026 New evidence shows that how medicines reach patients may be just as important as what is prescribed, with delivery systems emerging as a key driver of adherence, affordability, and long-term health outcomes. Review: Delivery models to improve adherence to medicines for chronic diseases in primary care . Image Credit: ako photography / Shutterstock In a recent review published in  The Lancet Primary Care , a group of authors