The aim of this research was to understand the interprofessional relationships and challenges in the provision of a Comprehensive Medication Management Service, a clinical service grounded in the theoretical framework of pharmaceutical care practice, by pharmacists practitioners being integrated into the health team through shared practice. The study field was an outpatient clinic for diabetes patients. This study was carried out using the ethnography methodology. Data collection included individual semi-structured interviews with fourteen team members and participant observation with field notes for 17 months. The interviews were audio recorded and transcribed. These transcriptions and the field notes were ana¬lyzed for recurring and emergent themes. "Understanding interprofessional relationships" is the main category of research and covers the stages of building interprofessional relationships and all the challenges inherent to this process. The following subtheme emerged from this category: "Roles and professional boundaries". This ethnographic description can contribute to professional training and promote reflection by health professionals about the challenges encountered in teamwork.
