Naltrexone implanted getting more attention in NSW now.
NSW Health Minister Jillian Skinner has refused to rule out funding a trial of surgically implanted naltrexone capsules to cure heroin addiction.
http://www.heraldsun.com.au/news/breaking-news/heroin-addiction-cure-could-have-nsw-trial/story-e6frf7kf-1226499260889