The electronic prescription and dispensation system is a breakthrough in the use of new technologies in the National Health System. It involves the improvement of processes of prescribing and dispensing pharmacotherapy and the coordination of health professionals. Also, for patients with long-term treatments, the system helps to reduce the frequency of primary care center visits and improves patient safety by reducing mistakes in prescriptions written by hand. The system requires the interconnection and functioning of many information systems to be integrated and work well together with the infrastructure of the data processing center that is responsible for distributing information to all healthcare centers. In this way, improvements of the electronic prescription system on healthcare will be analyzed (decrease of physician visits, reduction in medical errors, increase in therapeutic compliance by patients)
