"We found no evidence of a temporal relationship between cannabis use and pain severity or pain interference, and no evidence that cannabis use reduced prescribed opioid use or increased rates of opioid discontinuation."
In other words, pot doesnt help with pain. It's use doesn't reduce the amount of opioids prescribed. And pot doesnt help you quit opioids either.
Almost 800 participants. Prospective, cohort study. Pretty well-designed study.
https://www.thelancet.com/journals/lanpub/article/PIIS2468-2667(18)30110-5/fulltext