Prescription opioid use among addictions treatment patients: Nonmedical use for pain relief vs. other forms of nonmedical use

► We examine nonmedical prescription opioid use among addictions treatment patients. ► We examine reasons for use: other than pain relief and only for self-treatment. ► Those with nonmedical use for other reasons had increased substance use severity. ► Those with nonmedical use for other reasons had poorer mental health functioning.