CBD Doesn’t Impair Driving, Landmark Study Finds, While THC’s Effects Fade In Hours

MJ moment

Small doses of CBD appear to have no significant impact on driving, according to first-of-its-kind research published Tuesday in the Journal of the American Medical Association. Similar doses of THC, meanwhile, were associated with short-term impairment “modest in magnitude and similar to that seen in drivers with a 0.05%” blood alcohol concentration, the study found. After about four hours, signs of marijuana impairment faded. The University of Sydney-led experiment is the latest to study the effects of cannabis consumption on drivers, an issue of growing public concern as more jurisdictions around the world remove laws against the plant and its chemical components. “The results should reassure people using CBD-only products that they are most likely safe to drive, while helping patients using THC-dominant products to understand the duration of impairment,” said Iain McGregor, academic director of the university’s Lambert Initiative for Cannabinoid Therapeutics. The new research was funded by the Lambert Initiative, which studies the health effects of cannabis, and conducted at Maastricht University, in the Netherlands. Marijuana Moment reviewed a draft of the paper prior to its publication on Tuesday. To measure the effects of the cannabinoids on drivers, researchers first had participants vaporize one of four cannabis blends: mainly THC, mainly CBD, a combination of the two cannabinoids or a placebo containing less than 0.2 percent total cannabinoids. The target dose for each cannabinoid other than the placebo was 13.75 milligrams. Subjects then got into cars and took to the road. Accompanied by a licensed driving instructor, each completed a 100-kilometer circuit on a stretch of Dutch highway twice: first 40 minutes after consuming the cannabis blend and again four hours after consumption. Courtesy of the Lambert Initiative for Cannabinoid Therapeutics at the University of Sydney Researchers measured driving impairment by tracking how much drivers’ vehicles drifted in…

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Source : CBD Doesn’t Impair Driving, Landmark Study Finds, While THC’s Effects Fade In Hours

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