This report presents data on the number of clients accessing pharmacotherapy for the treatment of opioid addiction, the number of prescribers participating in the delivery of pharmacotherapy treatment, and quantitative information about the prescribing sector. The national opioid pharmacotherapy statistics annual data collection, 2007 report presents data on the number of clients accessing pharmacotherapy for the treatment of opioid addiction, the number of prescribers participating in the delivery of pharmacotherapy treatment, and quantitative information about the prescribing sector. This collection is one of a number of data sources that provide a picture of alcohol and other drug treatment services in Australia.