Chronic pain patients who used both prescription opioids and recreational marijuana showed higher levels of mental health and substance abuse problems than those who used opioids alone, survey results presented here showed.

Anxiety and depression scores were significantly higher for patients who used both drugs, as were measurements of opioid-dependence severity and alcohol and cocaine involvement, reported Andrew Rogers, of the University of Houston, and colleagues, at the 2019 American Pain Society Scientific Meeting.

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