This thesis investigates the potential of Mobile Augmented Reality (MAR) for improving medication adherence. Empirical research was conducted by interviewing patients, pharmacists, and a homecare worker. Based on insights and findings, an onboarding concept called MedinAR was developed through sketching and prototyping, with the aim of refining the idea and understanding the user experience. MedinAR leverages MAR to offer new ways of accessing and consuming medication information, making it more accessible to users. The concept, explored through four prototypes, focuses on onboarding for new medication regimes, providing an interaction flow for users to scan pill bottles, receive digital information in the physical space, and finally receive guidance on the appropriate placement of medication in the pillbox according to their medication regime. Further research is required to assess the technology's meaningful adoption, but the study's results underscore the importance of further exploring new supportive tools for medication adherence.