This training provides an evidence-based clinical overview of medications used in the treatment of substance use disorders, including opioid, alcohol, and other substance-related conditions. Participants will review the neurobiology of addiction, the continuum model of substance use disorders, and the role of pharmacotherapy in reducing craving, withdrawal, and relapse risk. The training examines the mechanisms of action, clinical indications, and limitations of commonly prescribed medications including methadone, buprenorphine, naltrexone, acamprosate, and disulfiram. Emphasis is placed on assessment, patient selection, interdisciplinary collaboration, and integration of medication-informed approaches into psychotherapy and case management. The training enhances professional competence by translating scientific knowledge into applied clinical decision-making and treatment planning. This training is intended for field-based mental health and outreach workers in Los Angeles County.