The United States is in the midst of what many are calling an opioid epidemic. According to the American Society of Addiction Medicine, more than 1.9 million people in the U.S. have a substance use disorders involving prescription pain medications, and another 580,000 have substance abuse issues with heroin. The human costs of these rates of addiction are staggering. Of the approximately 50,000 lethal drug overdoses that happen each year, almost 20,000 are the result of prescription opioids, and another 10,000 are the result of heroin. While prescription painkillers traditionally aren’t as dangerous as heroin, the connection between the two is well established. According to a 2013 survey, about 80% of heroin users started out abusing opioid painkillers.
Despite continued efforts at nearly every level of government, the rates of opioid addiction and overdose have continued to climb. However, researchers have identified an unlikely ally that may have quietly been slowing the rise of opioid use in certain states: medical marijuana.
A study recently released by Columbia University’s Mailman School of Public Health suggests that medical marijuana availability is linked to decreases in opioid usage. The study looked at opioid prevalence in autopsy reports from fatal car accidents over 14 years, and found that states that passed medical marijuana laws in that period saw a relative decrease in opioid prevalence compared to states that didn’t. While this study is making a splash, it’s just the most recent piece in a long line of research into the connection between medical marijuana availability and opioid use. One study published in Health Affairs in July showed that states which implemented medical marijuana laws between 2010-2013 saw a significant decrease in Medicare Part D prescriptions filled for medications for which marijuana is a possible alternative therapy — including opioids. Another study from 2014 showed a 25% decrease in deaths from prescription pain medication overdoses in states that implemented medical marijuana laws. Continue reading