This document summarizes a presentation on medication-assisted treatment for opioid addiction. It discusses the history of treatment approaches, including the development of methadone and buprenorphine maintenance therapies. Studies show that agonist therapies like methadone and buprenorphine are more effective at retaining patients in treatment and reducing illicit opioid use than non-medication approaches. While both methadone and buprenorphine are effective, buprenorphine has a safer side effect profile but its effectiveness may be limited by lower monitoring and adherence compared to methadone treatment. The document reviews several studies demonstrating the benefits of long-term agonist therapy over detoxification or short-term medication approaches for opioid