In this intervention study, 75 Belgian community pharmacies each recruit 12 patients for an intermediate medication review. For each patient, the identified drug-related problems and subsequent interventions are registered using the PharmDisc classification. In a subset of Dutch speaking patients, a pretest-posttest single group design is used to measure the impact of this review on patient related outcomes using questionnaires. The primary outcome is the medication related quality of life, measured via the living with medicines questionnaire. Other patient reported outcomes include adherence, self-management, patient satisfaction, fall incidents and use of emergency healthcare services. Medication records are also collected to objectively measure adherence before and after the intervention.