A recent study has stumbled upon a surprising finding: in the U.S. in states with legalised medical marijuana programs, opioid painkiller deaths have taken a sharp downward turn.

Data analysis has revealed that hospitals failed to see the predicted uptick of pot smokers cross through their doors, but instead found a substantial drop in opioid users. While fears that the legalisation of medical marijuana would lead to an increase of cannabis-related hospitalisations were proven to be unfounded, researchers discovered opioid overdoses decreased by 13 percent. Considering deaths from opioid use have skyrocketed over the last decade, the results of the study are significant.

“[M]edical marijuana laws may have reduced hospitalisations related to opioid pain relievers,” study author Yuyan Shi, a public health professor at the University of California, San Diego, told Reuters. “This study and a few others provided some evidence regarding the potential positive benefits of legalising marijuana to reduce opioid use and abuse … although they are still preliminary.”

Dr. Esther Choo, a professor of emergency medicine at Oregon Health and Science University in Portland, says the findings are intriguing.

“It is becoming increasingly clear that battling the opioid epidemic will require a multi-pronged approach and a good deal of creativity,” she said. “Could the increased liberalisation of marijuana be part of the solution? It seems plausible.”

Hwever she was also quick to point out, “there is still much we need to understand about the mechanisms through which marijuana policy may affect opioid use and harms.”

Analysing the hospital records of 27 states from 1997 through 2014 — nine of which have medical marijuana laws in effect — Shi’s study was the fifth to show significant declines in opioid use or deaths in states that had legalised medical cannabis.

The 2014 study published in JAMA Internal Medicine also established that states with medical cannabis laws had lower opioid-related mortality rates, a decrease of around 25 percent. Moreover, a study from Columbia University’s Mailman School of Public Health found that data from 18 states, between 1999 and 2013, showed a reduction in fatal car accidents involving opioid use for states with medical marijuana laws.

While these and other studies help to further support the legalisation of marijuana for alleviating both chronic and acute pain, as well as combatting the opioid epidemic, there are those who are not so enamoured with the idea. U.S. Attorney General Jeff Sessions is one such vocal opponent.

“I am astonished to hear people suggest that we can solve our heroin crisis by legalising marijuana,” he told law enforcement officers in Virginia, “so people can trade one life-wrecking dependency for another.”

All the same, an estimated 60 percent of Americans live within the twenty-eight states and Washington, D.C. that now have medical marijuana laws, even though a 1970 federal law puts cannabis in the same category as heroin, a schedule one drug. Incredibly, the Drug Enforcement Administration (DEA) also continues to staunchly uphold its position that marijuana has no medically valid use. Consequently, doctors can only recommend, not prescribe, marijuana, and physicians who work for the federal government cannot even discuss the weed.

However, physicians can, more or less, freely prescribe opioid drugs. The sale of prescription painkillers — like Oxycontin and Vicodin — has quadrupled since 1999. These highly addictive opioids kill 91 Americans a day.

According to a searing report from the Associated Press in 2016, it’s no coincidence that the manufacturers of opioid painkillers outspent the US gun lobby on lobbying and campaign contributions by a factor of 8:1 at the same time opioid-related deaths began to skyrocket. “All of this didn’t happen overnight,” Senator Clair McCaskill (MO) said of the current US opioid epidemic. “It happened one prescription and marketing program at a time.”

Millions Spent by Drug Companies Lobbying Opioids

The report focused on the period between 2006 and 2015, when deaths from opioid use exploded. Business Insider lists a few of the most striking findings:

• Opioid drugmakers including Purdue Pharma, the maker of OxyContin, spent more than $880 million, or roughly $98 million per year, on lobbying and campaign contributions that included efforts to support the drugs.

• Drugmakers and allied advocacy groups employed a yearly average of 1,350 lobbyists in legislative centres.

• In 2015 alone, 227 million opioid prescriptions were given out in the US, or “enough to hand a bottle of pills to nine out of every 10 American adults.”

• Purdue Pharma made $2.4 billion from opioid sales last year alone.

Now, pharmaceutical companies are poised to make even more money from new versions of the drugs, which are marketed as ‘safer’ and ‘tougher to abuse’ — and yet, most likely won’t curb the tide of overdose deaths. According to the report, these ‘abuse-deterrent’ opioids may very well carry the same risk of addiction as traditional opioids, and “ultimately are more lucrative, since they’re protected by patent and do not yet have generic competitors.”

All the more reason to legalise medical marijuana across the US and sidestep pharmaceutical companies altogether.