Brief intervention (BI) is a time-limited discussion or intervention that can range from minutes to hours over single or multiple sessions. Key aspects of BI include providing feedback on risks, taking responsibility for change, advising to change, offering alternative options, showing empathy, and boosting self-efficacy. Identification and brief advice (IBA) focuses on alcohol use and involves screening and brief interventions. IBA is effective for those whose alcohol use is not chronic. Brief interventions are direct but can be done compassionately and help those whose substance use is not severe.