Medical Cannabis Laws and Opioid Analgesic Overdose Mortality in the United States, 1999-2010

Importance Opioid analgesic overdose mortality continues to rise in the United States, driven by increases in prescribing for chronic pain. Because chronic pain is a major indication for medical cannabis, laws that establish access to medical cannabis may change overdose mortality related to opioid analgesics in states that have enacted them. More.