Elderly patients use more medications given the prevalence of co-morbidities putting them at risk of experiencing medication errors. A highly anticipated strategy is the implementation of health record solutions, namely a mix of shared electronic health records and personal health records. This intervention provides information for all individuals involved in the medication use system (patients, carer, doctors and pharmacists) and enables them to make more informed decisions throughout the medication use process (prescribing, dispensing, administering, monitoring of medications). However, it is difficult to direct the design of such an integrated health record solution that takes into consideration contextual factorsand its impact on, existing interventions and society. Traditional methods such as random controlled trials lack the capacity to capture the scale of the problem and are inadequate in terms of time frames, cost, resources required, and non-applicability of trial settings. Multi-scale simulations can represent the systemís different spatial and temporal resolutions providing a logical and consistent framework for dynamic analysis and a means to design and test health record policies to cover a range of possible futures in a risk-free environment.