In Victoria, 138 publicly funded alcohol and other drug treatment agencies and outlets supplying data provided 52,133 treatment episodes in 2009-10. This was an increase of two agencies and about 5,000 treatment episodes compared with 2008-09. Alcohol (46%), cannabis (23%), opioids (19%, with heroin alone accounting for 14%), and amphetamines (5%) were the most common principal drugs of concern. Counselling was the most common form of main treatment provided (accounting for 51% of episodes) followed by withdrawal management (detoxification) (19%) and support and case management only (13%).