Opioid Agonist Therapy (OAT) is a widely used treatment for opioid use disorder (OUD), where medications such as methadone or buprenorphine are used to mimic the effects of opioids in a controlled manner. OAT helps reduce withdrawal symptoms and cravings while blocking the euphoric effects of illicit opioid use. By stabilizing brain chemistry, OAT allows individuals to focus on recovery without the constant compulsion to seek out drugs. This approach has been shown to improve long-term outcomes by reducing the risk of overdose, preventing relapse, and enabling individuals to participate more fully in therapeutic interventions. OAT is often combined with counseling, support groups, and other psychosocial treatments to address the behavioral aspects of addiction.