People don't get addicted because of chemical reasons as much as because they're unhappy with their lives. When Portugal decriminalized all drugs, and offered support and housing and jobs to addicts rather than prison sentences, those addicts get their lives back together and stay clean. Their drug problem is now much smaller. Deal with the source of the problem, the trauma, before trying to end off the subsequent addiction. And don't threaten addicts with prison, but offer help. More countries need to adopt this approach.