Medication safety in inpatient and outpatient settings is a major focus of patient safety efforts. This review included 79 studies on epidemiology, etiology, or interventions related to psychiatric medication safety in primary care (e.g., general practice, community pharmacy, long-term care). Most studies focused on older adults and potentially inappropriate prescribing. The authors recommend future research on wider age groups and underrepresented mental health diagnosis, such as attention deficient hyperactivity disorder (ADHD).