Posted by CN Staff on November 16, 2016 at 13:16:43 PT

By Alexandra Sifferlin

Source: Time



USA -- Legal access to marijuana, medicinal or otherwise, is growing. In 2016, four states approved recreational use of the drug and four states passed laws related to medical-cannabis access, bringing the total number of states that allow some form of legal marijuana use to 28. Scientists know that marijuana contains more than 100 compounds, called cannabinoids, that have biological effects on the body. Mdically, cannabis can be prescribed for physical ailments like arthritis and cancer symptoms as well as mental health issues like PTSD, depression and anxiety. Still, the role marijuana can play in medicine remains murky. The dearth of research is in large part due to the fact that most studies have focused on illicit use of marijuana rather than its therapeutic potential, and because it’s classified as a schedule 1 drug, making it nearly impossible to study.



Looking for answers about marijuana’s potential mental health benefits, a team of researchers in Canada and the U.S. recently conducted a review of the science. In their report, published in the journal Clinical Psychology Review, researchers found evidence that cannabis can likely benefit people dealing with depression, social anxiety and PTSD, though it may not be ideal for people with bipolar disorder, for instance, for which there appears to be more negative side effects than positive ones. “This is a substance that has potential use for mental health,” says Zach Walsh, an associate professor of psychology at the University of British Columbia. “We should be looking at it in the same way [as other drugs] and be holding it up to the same standard.” Though more research is needed, studies also suggested that cannabis may have a place in dealing with addiction. “We are really excited about the potential substitution effect,” says study author Zach Walsh, an associate professor of psychology at the University of British Columbia. “If people use cannabis as a replacement for opioid medications, or to get off of opioids or cut back, we could see some pretty dramatic public health benefits. The level of opioid overdoses is so high right now.” There’s evidence to support that potential. Another unrelated study suggested that pot may even have a place in curbing the opioid epidemic. And yet marijuana can be notoriously hard to study in the U.S. because it’s classified as a Schedule 1 drug, which means it has a high potential for abuse. Many scientists and medical professionals think the classification hampers research, and that marijuana’s medical potential merits further exploration. More studies, research advocates argue, would also help eliminate stigma associated with the drug, paving the way for more and better studies. “I think people will derive more benefit if they can speak more openly with providers about whether they are using cannabis and why,” says Walsh. Walsh is a lead investigator on a clinical trial of cannabis that is being funded by a medical cannabis producer called Tilray. Another researcher on the study has been a consultant for other medical cannabis producers. When asked if this represents a conflict of interest, Walsh points out that funding for marijuana-related research is hard to come by. “I think we are entering a different world,” he says, “but for now a lot of the research, at least in Canada, is funded by the producers.” Like any drug, pot can have side effects, and Walsh and other researchers argue that for now, all aspects of cannabis need to be further explored, both benefits and potential harms. Source: Time Magazine (US)

Author: Alexandra Sifferlin

Published: November 16, 2016

Copyright: 2016 Time Inc.

Contact: letters@time.com

Website: http://www.time.com/time/

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