Substance use disorders are complex conditions influenced by biological, psychological, emotional, social, cultural, developmental, and environmental factors. Because no single treatment model fully captures this complexity, effective addiction counseling requires theoretically informed and integrative approaches that help clinicians conceptualize substance use, select interventions, strengthen the therapeutic alliance, and support long-term recovery. This course provides an overview of major theoretically based approaches used in addiction counseling and substance use disorder treatment. Participants will examine Adlerian Psychology, Behavioral Therapy, Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), Family Systems Counseling, Gestalt Therapy, and Medication-Assisted Treatment (MAT)/pharmacotherapy integration. The training explores how these approaches address behavior change, emotional regulation, trauma, reinforcement patterns, family dynamics, motivation, relapse, and recovery. It also examines therapeutic alliance, motivational interviewing, trauma-informed and culturally responsive care, individualized treatment planning, relapse prevention, recovery capital, ethical practice, documentation, risk assessment, and scope-of-practice considerations. Participants will review applied case studies involving trauma and alcohol use, family dynamics and opioid use, adolescent cannabis use, and chronic relapse. These activities are designed to strengthen clinical conceptualization, critical thinking, theoretical integration, and treatment-planning skills across multiple treatment modalities. Approximate completion time: 300 minutes. Instructional time includes review of course materials, applied case studies, reflective activities, the post-test, and the course evaluation.