Thanks!!! In the McGregor & Bowen, 2012 paper, they look at the oxytocin in relation to addiction. Oxytocin is a heavily socially influenced system (dubbed the love molecule), and drug use occurs at social events. They guessed that drug administration (or use), which often causes long term changes in these oxytocin circuits, might vary with social inputs.

Oxytocin therefore has fascinating potential to reverse the corrosive effects of long-term drugs abuse on social behavior and to perhaps inoculate against future vulnerability to addictive disorders.