Cannabis Use and Nonfatal Opioid Overdose.
Results: Of 446 participants, 35% (n = 156) reported frequent cannabis use and 7% (n = 32) reported nonfatal opioid overdose in the past year.
"Among individuals enrolled in Methadone Maintenance Treatment, frequent cannabis use in the past month was associated with fewer self-reported nonfatal opioid overdoses in the past year."