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Naltrexone, sold under the brand name Revia among others, is a medication primarily used to manage alcohol use or opioid use disorder by reducing cravings and feelings of euphoria associated with substance use disorder. [8] It has also been found effective in the treatment of other addictions and may be used for them off-label. [12]
Naltrexone/bupropion, sold under the brand name Contrave among others, is a fixed-dose combination medication for the management of chronic obesity in adults in combination with a reduced-calorie diet and increased physical activity. [4] [6] It contains naltrexone, an opioid antagonist, and bupropion, an aminoketone atypical antidepressant. [4]
6β-Naltrexol, or 6β-hydroxynaltrexone (developmental code name AIKO-150), is a peripherally-selective opioid receptor antagonist related to naltrexone. [2] [3] It is a major active metabolite of naltrexone formed by hepatic dihydrodiol dehydrogenase enzymes.
A course of low-dose naltrexone is thus often used as the final step in the treatment of opioid addiction after the patient has been weaned off the substitute agonist such as methadone or buprenorphine, in order to restore homeostasis and minimize the risk of post acute withdrawal syndrome once the maintenance agonist has been withdrawn.
Methylnaltrexone (MNTX, brand name Relistor), used in form of methylnaltrexone bromide (INN, USAN, BAN), is a medication that acts as a peripherally acting μ-opioid receptor antagonist that acts to reverse some of the side effects of opioid drugs such as constipation without significantly affecting pain relief or precipitating withdrawals.
The study found that naltrexone blunted alcohol cue elicited craving in the laboratory and natural environment. [38] Regarding psychotherapy, assessing cue reactivity has provided insight into potential relapse triggers and cue exposure has been used as a treatment approach.
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Opioid agonist therapy (OAT) is a treatment in which prescribed opioid agonists are given to patients who live with Opioid use disorder (OUD). [1] In the case of methadone maintenance treatment (MMT), methadone is used to treat dependence on heroin or other opioids, and is administered on an ongoing basis.