The government seeks to improve public services through the emergence of innovative ideas, one of which is with the "Gancang Aron" program at a hospital in Banyuwangi. This study aims to provide a particular system design integrated with the primary program system to minimize errors in the pharmacy department. This research uses a descriptive qualitative approach with case studies—data obtained through observations, interviews, and documentation. The analysis technique used is the input-process-output-based information system development. This system's development will provide optimization of services, especially in the medicine section, to avoid errors that will impact reports and decision-making. This research implies that the system design results can serve as a basis or model for the development of information systems in various organizations and a guide in making policies and decision making.