This document discusses pharmacy informatics, which encompasses healthcare technologies that improve medication safety and outcomes. It describes how informatics pharmacists use information systems and their medication expertise to enhance patient care. Current technologies like CPOE, CDSS, and bar coding are reviewed. The document also addresses challenges like alert fatigue, nearly universal order review, and the need for informatics education and training. Overall it provides an overview of the field of pharmacy informatics and its goal of using technology to improve the medication use process from prescribing to patient outcomes.