Here are some additional citations referencing naltrexone
1: Kranzler HR, Tennen H, Armeli S, Chan G, Covault J, Arias A, Oncken C.
Targeted naltrexone for problem drinkers. J Clin Psychopharmacol. 2009
Aug;29(4):350-7.
Abstract
This study aimed to replicate and extend prior research showing that the targeted use of naltrexone is a useful strategy to reduce heavy drinking. We compared the effects of naltrexone with those of placebo in a sample of 163 individuals (58.3% male) whose goal was to reduce their drinking to safe limits. Patients received study medication (ie, naltrexone 50 mg or placebo) and were instructed to use it daily or targeted to situations identified by them as being high risk for heavy drinking. An interactive voice response system was used to obtain daily reports of drinking and medication use during the 12-week trial. Analyses were conducted using hierarchical linear modeling, with sex as a potential moderator variable. On the primary outcome measure, mean drinks per day, at week 12, men in the targeted naltrexone group drank significantly less than patients in the other groups did. On a secondary outcome measure, drinks per drinking day, during week 12, the targeted naltrexone group drank significantly less than the other groups did, with no moderating effect of sex. These results support the use of a targeted approach to reduce drinking among heavy drinkers, particularly men, but argue for the use of additional strategies or more efficacious medications than naltrexone to increase the effects of such an intervention.
And here is an interesting case report. The doctors here were treating this guy's internet porn addiction with naltrexone but as a side effect his binge drinking went away. The authors discuss the neurophysiology of addiction in great detail. Interesting stuff for any of you science geeks out there.
http://www.mayoclinicproceedings.com/content/83/2/226.fullMayo Clin Proc. 2008 Feb;83(2):226-30.
Internet sex addiction treated with naltrexone.
Bostwick JM, Bucci JA.
Department of Psychiatry and Psychology, 200 First St SW, Rochester, MN 55905, USA.
bostwick.john@mayo.eduAbstract
Malfunctioning of the brain's reward center is increasingly understood to underlie all addictive behavior. Composed of mesolimbic incentive salience circuitry, the reward center governs all behavior in which motivation has a central role, including acquiring food, nurturing young, and having sex. To the detriment of normal functioning, basic survival activities can pale in importance when challenged by the allure of addictive substances or behaviors. Dopamine is the neurotransmitter driving both normal and addictive behavior. Other neurotransmitters modulate the amount of dopamine released in response to a stimulus, with the salience determined by the intensity of the dopamine pulse. Opiates (either endogenous or exogenous) exemplify such modulators. Prescribed for treating alcoholism, naltrexone blocks opiates' capacity to augment dopamine release. This article reviews naltrexone's mechanism of action in the reward center and describes a novel use for naltrexone in suppressing a euphorically compulsive and interpersonally devastating addiction to Internet pornography.