Methadone treatment has became one of main actions taken in China to control the spread of
HIV among drug users. However，the average methadone dose used is relatively low. An intensive
methadone maintenance treatment (MMT) provider training on methadone dosage may be effective
in increasing the methadone dose levels prescribed to new patients. The study will evaluate
the effectiveness of a tailored education program for MMT service providers using subsequent
methadone dose prescribed to new patients. The effects of methadone dose, with and without
the inclusion of additional psychosocial services, will then be measured through MMT
retention and illicit opioid use.