Background: Pharmaceutical care in outpatient settings is a type of health service that has been shown to contribute to decreasing drug-related morbidity and mortality rates. However, every process of implementing a new service brings about changes and transformations in the work routine, thus posing challenges.
Objectives: This systematic review aims to identify barriers to and facilitators for the implementation of pharmaceutical care in outpatient settings by applying the CFIR method, a framework based on the theory of health services, used to analyze and synthesize research data, which can direct strategies for the service to work as planned.