Introduction: The aim of this systematic review was to assess the effectiveness of brief interventions realized in primary care in reducing cannabis use for adolescents and emerging adults.
Methods: PubMed, CINAHL, Embase, PsycInfo, and Central (Cochrane Library) were searched until December 2020. Randomized controlled trials conducted in primary care, concerning in-person brief interventions for non-medical cannabis users aged from 12 to 25 years old were eligible for inclusion.