Retrospective study at the University of Michigan, published in the Journal of Pain by the American Pain Society in 2016 found that patients surveyed in Michigan using cannabis for chronic pain had a 64% decrease in opioid use, decreased side effects from medication and a reported improved quality of life with no adverse events.
“This study suggests that many chronic pain patients are substituting medical cannabis for opioids and other medications for chronic pain treatment, and finding the benefit and side effect profile from cannabis to be greater than these other classes of medications.”
The Journal of Pain
Boehnke, KF. et al. Medical Cannabis Use Is Associated With Decreased Opiate Medication Use in a Retrospective Cross-Sectional Survey of Patients With Chronic Pain. The Journal of Pain, 17(6), 739 – 744