A new study has dispelled the notion that legalizing medical marijuana can prevent opioid-related deaths.
A previous study in 2014 found lower rates of fatal opioid overdoses in the states that had legalized marijuana for medical purposes than in states where marijuana remained illegal. According to that study, opioid-related deaths were nearly 25 percent lower in the 13 U.S. states that had legalized medical marijuana then.
That research received substantial attention in the scientific literature and media. It also served as a talking point for the cannabis industry and its advocates.
As a result, more states legalized marijuana for medical use after it was touted as a solution to the U.S. opioid overdose crisis.
However, the new study by researchers at the Stanford University School of Medicine shows that death rates from opioid overdoses were actually almost 23 percent higher in…