Prescription Opioid Distribution after the Legalization of Recreational Marijuana in Colorado Amalie K. Kropp Lopez, Stephanie D. Nichols, Daniel Y. Chung, Daniel E. Kaufman, Kenneth L. McCall  and Brian J. Piper International Journal of Environmental Research and Public Health, 2020, 17, 3251 doi : 10.3390/ijerph17093251   Abstract : There have been dynamic changes in prescription opioid use in the US but the state level policy factors contributing to these are incompletely understood. We examined the association between the legalization of recreational marijuana and prescription opioid distribution in Colorado. Utah and Maryland, two states that had not legalized recreational marijuana, were selected for comparison. Prescription data reported to [...]