In this Wednesday, Oct. 9, 2019 photo, a customer sniffs a display sample of marijuana, in a tamper-proof container secured with a cable, sold at Evergreen Cannabis, a marijuana retail shop, in Vancouver, B.C. (AP Photo/Elaine Thompson)

In this Wednesday, Oct. 9, 2019 photo, a customer sniffs a display sample of marijuana, in a tamper-proof container secured with a cable, sold at Evergreen Cannabis, a marijuana retail shop, in Vancouver, B.C. (AP Photo/Elaine Thompson)

Cannabis could help those struggling with PTSD, B.C. study finds

Canada has one of the highest rates of PTSD worldwide at 9.2 per cent.

Using cannabis could help people who are struggling with post-traumatic stress disorder, a B.C. study has found.

The study, a partnership between the B.C. Centre on Substance Use and the University of B.C., found that having PTSD was strongly associated with suffering a major depressive period and suicidal ideation among people who did not use cannabis. The link was not present in those who did use cannabis.

The data, published Tuesday in the Journal of Psychopharmacology, is the first of its kind, said lead author and BCCSU research associate Stephanie Lake.

The key, she said, was being able to use Statistics Canada data rather than waiting for clinical trials to finish up.

“There’s really been a rise in the number of Canadians who were using cannabis for PTSD,” Lake said. “We’ve seen a lot of patient reports of success with PTSD and cannabis, but we’ve yet to see a clinical study.”

The researchers used data related to the cannabis use and mental health of 24,000 people, and drew conclusions about how the drug interacts with the disorder. The information is particularly relevant in Canada, which has one of the highest rates of PTSD worldwide at 9.2 per cent of the population.

Of the 24,089 people in the study, 420 had a current PTSD diagnosis. Of those, 106 people, or 28.2 per cent, reported using cannabis in the past year, compared to 11.2 per cent of those who did not have PTSD.

Non-users with PTSD were seven times more likely to have a major depressive episode and nearly five times more likely to have suicidal thoughts, compared with users of cannabis.

Lake, who is also a PhD student at UBC’s School of Population and Public Health, said the research was too broad to discern why cannabis had the effect it did, but it did point to what use was most helpful for PTSD.

“We saw that compared to non-users, lower risk [cannabis] users were at a reduced likelihood of major depressive episodes and suicidal ideation, but higher risk users were at a higher chance,” she said. Higher-risk users show signs of cannabis use disorder, which is a compulsive use of pot and an inability to stop.

M-J Milloy, a professor of cannabis science at UBC, said the findings open up further avenues to study cannabis.

“One of the important results of the study is it really supports our plans to move forward with clinical trials,” he said.

“There’s clearly lots of patients self-medicating with cannabis, but there’s a real gap with our clinical knowledge.”

Milloy said legalization and regulation would help narrow what kinds of cannabis work best for PTSD, because patients and researchers would be assured of the strain and the THC or CBD content.

“We know that many people believe certain strains of cannabis work better, [while] some people want to use cannabis edibles, or prefer high CBD,” he said.

“As scientists, we want figure out if these preferences are real so we can optimize them for PTSD treatment.”

READ MORE: Canadian study links teenage pot use to increased risk of suicidal behaviour

READ MORE: B.C. company gets licence to test psychedelic drugs for therapy treatment


@katslepian

katya.slepian@bpdigital.ca

Like us on Facebook and follow us on Twitter.

Just Posted

The Reach Gallery Museum is one of three Abbotsford arts and culture organizations to receive Pivot Program grants through the provincial government. (Abbotsford News file photo)
Three Abbotsford arts organizations receive $70K in B.C. grants

Funding awarded through provincial government’s Pivot Program

Jonathan Prest had to climb way up to the top of a dead red cedar tree to rescue a terrified cat, but he made it up and down successfully. (Facebook photos)
Rosedale tree cutter rescues cat stuck 100 feet up a dead and dried-out cedar

Jonathan Prest put himself in extreme peril to get a terrified cat out of a dangerous situation

A lumber planer has been installed at the former Metric Modular site as PowerWood works on moving from Surrey to Agassiz. Established in 1995, the red cedar product manufacturer will have plenty of room to grow in Agassiz, said co-owner Jake Power. (Adam Louis/Observer)
Surrey cedar processor PowerWood moving to Agassiz

The company ships red cedar projects all over the world

Photo by Dale Klippenstein
Death of man found on road in Abbotsford now deemed suspicious

Body found May 8 on North Parallel Road was initially labelled hit-and-run

A pair of rare peregrine falcons have returned to their nesting site at an Abbotsford quarry, resulting in increased concerns from opponents about their safety. (PHOTO: #savebcfalcons Instagram page)
Concerns escalate about rare peregrine falcons as blasting set for Abbotsford quarry

Opponents worried after birds return to nesting site at quarry on Quadling Road

Prince Rupert was one of the first B.C. communities targeted for mass vaccination after a steep rise in infections. Grey area marks community-wide vaccine distribution. (B.C. Centre for Disease Control)
B.C. tracks big drop in COVID-19 infections after vaccination

Prince Rupert, Indigenous communities show improvement

Superintendent Aaron Paradis, community services officer with the Surrey RCMP, during a media availability about a recent drug bust in Port Coquitlam. (Photo: Lauren Collins)
Police seize 13 million ‘potentially fatal doses’ of fentanyl at B.C. drug lab

The evidence was seized at large, illicit drug manufacturing site in Port Coquitlam

Police are asking the public for help identifying a suspect who allegedly hurled anti-Asian slurs at a family in a Richmond drive-through on May 1. (Benjamin Wong/Screen grab)
Suspect at large in racist tirade at Richmond drive-thru, says RCMP

The Caucasian man was recorded May 1 yelling anti-Asian slurs at a Richmond family in the lineup

B.C. Public Safety Minister Mike Farnworth debates the province’s latest measure to control crime, March 10, 2021. The legislation allows police to impound vehicles used to transport weapons and further restricts sale of vehicle and body armour. (B.C. legislature video)
B.C. seeking ways to ‘name and shame’ gangsters, minister says

Mike Farnworth appeals to family members to talk to police

The Greater Victoria School District continues to face backlash over its wording and approach to Indigenous learners in its 2021-2022 budget talks. (Black Press Media file photo)
School district’s approach to Indigenous learners leaves Victoria teachers ‘disgusted’

Backlash grows over ‘pattern of colonial thinking permeating the leadership’

Italian-Canadian prisoners at the Kananaskis prisoner of war camp in Alberta. (University of Calgary/Contributed)
Italian moved to Okanagan with hope; he ended up being sent to a WWII internment camp

Raymond Lenzi shares his grandfather’s story ahead of Canada’s planned formal apology to Italian-Canadians

Police and fire crews were in the 18500-block of 18 Avenue around 9 p.m. Thursday (May 13, 2021). (Curtis Kreklau photo)
PHOTOS: Police investigating South Surrey vehicle fire

Unclear if blaze in the 18500-block of 18 Avenue related to Burnaby shootings: RCMP

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Then-minister Rich Coleman, escorted by Victoria Police, makes his way to the east wing amid a protest blocking the legislature entrances before the throne speech in Victoria, B.C., Tuesday, Feb. 11, 2020. THE CANADIAN PRESS/Chad Hipolito
B.C. money laundering inquiry testimony ends today with reappearance of Rich Coleman

Responsible for the gaming file off and on from 2001 to 2013, Coleman been recalled after his initial testimony to the Cullen Commission last month

Most Read