Cannabidiol use ‘does not impair driving’

But medicinal cannabis containing THC is another matter and there’s concern the study doses were too low

Low-dose cannabidiol (CBD) does not affect a person’s driving performance, a first-of-its-kind Australian-led study has found.

But cannabis products containing delta-4-tetrahydrocannabidiol (THC) can impair driving ability – including reaction time and psychomotor function — for up to four hours following consumption, researchers say.

Study lead author Dr Thomas Arkell, from the University of Sydney’s Lambert Initiative for Cannabinoid Therapeutics, said the findings were good news for patients using or considering CBD-based products and treatments.

“With cannabis laws changing globally, jurisdictions are grappling with the issue of cannabis-impaired driving,” he said.