This document summarizes automated drug dispensing systems. It discusses dispensing processes and environments. Outpatient services refer to non-hospitalized patients visiting for consultations, while inpatient services refer to hospitalized patients receiving total pharmaceutical care. Common inpatient drug dispensing methods are individual prescription ordering, complete floor stocking, mobile dispensing, and unit dose dispensing like CUDDS and DUDDS. Automated dispensing involves robotic systems that store and retrieve medications automatically for improved safety, efficiency, and stock control. While advantages include faster filling and less errors, disadvantages include costs and technical skills required.