Well, basically what the title insinuates...
A scientific study was just published in Journal of The American Medical Association (JAMA) investigating the association between medical marijuana laws and deaths from opioid (prescription pain killer) overdoses.
From the abstract:
Bachhuber et al. wrote:
Results: Three states (California, Oregon, and Washington) had medical cannabis laws effective prior to 1999. Ten states (Alaska, Colorado, Hawaii, Maine, Michigan, Montana, Nevada, New Mexico, Rhode Island, and Vermont) enacted medical cannabis laws between 1999 and 2010. States with medical cannabis laws had a 24.8% lower mean annual opioid overdose mortality rate (95% CI, −37.5% to −9.5%; P = .003) compared with states without medical cannabis laws.
Source:
Bachhuber MA, Saloner B, Cunningham CO, Barry CL. Medical Cannabis Laws and Opioid Analgesic Overdose Mortality in the United States, 1999-2010.
JAMA Intern Med. Published online August 25, 2014. doi:10.1001/jamainternmed.2014.4005.
http://archinte.jamanetwork.com/article ... id=1898878
http://media.jamanetwork.com/news-item/ ... uana-laws/
When converted to raw numbers, the authors of the study found (see the 2nd link) that there were about
1,729 fewer deaths than expected in states with medical marijuana laws. Furthermore, the study also finds that the effect has become larger over time: In 2010 (the last year in the study), the reduction in mortality was even higher at 33 percent.
The most plausible causal mechanism (absent some confounding variable) for the reduction in mortality is of course that people in these states tend to use medical marijuana instead of opioid drugs, and thus put themselves at lower risk of death from overdose. It is well established that it is basically impossible to ingest a lethal dose of cannabis, and attempts to extrapolate the lethal dose from studies on animals to humans usually yield hilarious results.
The study is - to my knowledge - the first investigating this particular link, and the authors caution against drawing too firm conclusions about the causality (see the 2nd link).
Nonetheless, the sheer magnitude of annual drug overdose deaths in the US suggests that the continued criminalization of cannabis (for medical purposes, at least) may carry a substantial death toll.
According to the CDC, there were 16,917 opioid overdose deaths in the US in 2011, or 41 percent of
all drug overdose deaths in the US in 2011. Furthermore, drug overdose mortality has been rising rapidly, and has more than doubled in the last decade.
http://www.cdc.gov/homeandrecreationals ... facts.html
This suggests - if the link between legalization and lower mortality holds - that there could be a massive life saving potential from expanding medical marijuana laws.
It is not too far-fetched, either, to envision that the legalization of
recreational marijuana may cause similar reductions in lethal opioid overdoses, as prescription pain killers are also used for recreational purposes. However, given that recreational marijuana has only recently been legalized in Colorado and Washington, it will likely take some time before any conclusions can be drawn about this issue.
Please discuss.
Last edited by GGPViper on 26 Aug 2014, 3:56 pm, edited 1 time in total.