(FDA’s Psychopharmacologic Drugs Advisory Committee has now recommended the commercial use of naltrexone for the treatment of opioid dependency).
As you know NALTREXONE is a long-acting opiate blocker. It has been in use since 1992 mainly for treatment of alcoholism and opiate addiction but new uses have been found over time. It is antiopiate and has no effect except for blocking the opiate brain receptors preventing all other opiates from working. Currently, the prescription medication naltrexone is commercially available for the treatment of alcohol dependence under the brand name Vivitrol since it gained approval from the U.S. Food and Drug Administration (FDA) in 2006.
FDA’s Psychopharmacologic Drugs Advisory Committee has now recommended the commercial use of naltrexone for the treatment of opioid dependency. The opioid-blocking, extended-release injectable suspension may become the first non-addictive, non-narcotic drug agent available in a monthly prescription come October.
The Advisory Committee voted 12 to 1 in favor of naltrexone’s use in the treatment of opioid dependency and found the sNDA to be particularly favorable since the clinical trials of the drug showed no apparent serious side effects. The clinical trials did show positive results among sample populations of alcoholics or opioid addicts compared to placebo-administered control groups.
“Efficacy and Safety of Extended-Release Injectable Naltrexone (XR-NTX) for the Treatment of Opioid Dependence,” conducted by lead investigator Dr. Evgeny Krupitsky of St. Petersburg Regional Center of Addictions in Russia found that naltrexone injections successfully reduced drug cravings among opioid-dependent individuals. In a 24-week investigation involving 250 opioid-dependent participants who had opioid addiction for 10 years, the group administered naltrexone injections showed significant reductions in their cravings, physiologic dependence, and self-reported opioid use, and had better retention compared to the placebo group. These participants were more capable of suppressing their cravings, preventing relapse and sustaining abstinence.
Due to the disruption of normal neurotransmission in the brain’s reward system caused by opioid use, opioid abusers become physiologically vulnerable to their cravings and often relapse even after undergoing treatment. The experts from the clinical trials as well as the FDA Advisory Committee caution that naltrexone may not be an absolute cure-all to alcoholism or opiate addiction, but the benefits of this new injectable does give the field of addiction medicine more options when it comes to treating opioid addiction.
New uses for this medication include help for gambling addicts. These addicts are being helped by high dose Nalrexone (100-150 mg per day) as opposed to opiate addicts which can be blocked by only 50 mg per day. This medication is now used for the treatment of sexual addiction and shopping addiction in the dose range of 100-200 mg per day. If you or a loved one has a problem with Vicodin, Heroin, sleep aids, gambling or shopping please call us.
In its editorial, Associate Professor Robert Ali, Director of the Drug Alcohol Services Council in Adelaide, and his co-authors said that naltrexone is theoretically an attractive treatment for opioid dependence because it is inexpensive, long-acting, and generally well tolerated. Oral naltrexone is used as a treatment for heroin and alcohol dependence. However, the effectiveness and safety of oral treatments is compromised by poor patient adherence to taking regular doses. This has led to the development of long-acting naltrexone implants and depot injections.