Louisville Medicine Volume 63, Issue 3 | Page 28

THE TREATMENT OF OPIOID ADDICTION Mark Jorrisch, MD T he United States is in the grips of one of the worst epidemics of heroin and other opioids in its history. Government studies estimate the number of heroin users to be about 330,000 and growing, up about 75 percent from five years ago and up almost three times compared with the decade low of 119,000 in 2003. All told, heroin and related prescription opioids have killed more than 125,000 in the U.S. in the past 10 years. What treatment options are available and which work best? ABSTINENCE-BASED VS. OPIATE AGONIST TREATMENT With the current regional and national opioid addiction epidemic there has been a strong movement by specialty societies to re-frame treatment and measures of success. Success need not be based solely on the person becoming totally medication free (consider most other medical disorders such as diabetes, hypercholesterolemia, or hypertension) but on other measures. Measures of success should include cessation of illicit drug use, retention in treatment, end of criminal involvements and gainful employment. Abstinence-based programs usually rely on an initial detoxification, often while hospitalized, followed by counseling and other psychological support. Long-term residential programs are often not readily available mainly because of expense. Outpatient programs of varied length utilize such techniques as cognitive behavioral therapy, motivational enhancement therapy, contingency management and twelve step facilitation, all of which have a good evidence base for success. A significant downside of the abstinence based approach, however, is the limited retention in treatment during the early course as patients struggle with unmanageable and prolonged withdrawal symptoms. STANDARDS OF PRACTICE Treatment options for opiate addiction fall into two general categories: abstinence-based treatment and Opiate Agonist Treatment (OAT). The alternative approach is Opiate Agonist Treatment (OAT), specifically agonist treatment with methadone (full agonist) or buprenorphine (partial agonist available in various formulations including generic tablets and branded Suboxone, Zubsolv, and Bunavail). Naltrexone (antagonist) will not be further discussed in this article. Opioid agonists are well established as treatment both for withdrawal and maintenance but are only available from licensed facilities. The success of this approach is well-established and dates back to the days of the Lexington Narcotic Farm, established in 1935, and to the Dole and Nyswander studies that established methadone as a viable treatment for narcotic addiction as far back as 1964. Unfortunately, there have been controversy and stigma attached to both medications as a result of misuse, mismanagement, and poor practice. Being viewed as a ‘drug’ rather than as a ‘medication’ interferes with the availability and widespread use of methadone and buprenorphine as a treatment for opioid addiction. 26 opiate use disorders, alcohol use disorders, and tobacco use disorder now play prominent roles in treatment. This is likely the future of addiction medicine as well as other brain diseases. This better understanding of the pathology of addiction will likely lead to new and innovative approaches for treatment. Using opioid agonists early in treatment both for acute and postacute withdrawal leads to improved retention in treatment. Cost savings to the community for addiction treatment in general saves $4 in health care costs and $7 in law enforcement costs for every dollar spent (ONDCP Fact Sheet). Methadone is the standard, and buprenorphine has shown equal efficacy in maintenance treatment. Some studies do show improved retention in treatment with methadone. Comparison studies with abstinence-based p