Cannabidiol doesn't affect driving skills, shows Sydney study

The researchers were surprised at how long CBD remained in plasma during their small trial - up to four weeks with high doses

Cognition and driving ability are not affected by pure cannabidiol even at very high doses, a small Sydney pilot study finds.

The trial involved simulated driving sessions and revealed the 17 participants were no more likely to weave or to drive too close to a car in front of them than those on placebo.

Lead author Dr Danielle McCartney (PhD), of the University of Sydney, said the study's findings were in line with their hypothesis.

"Our expectation was that [cannabidiol (CBD)] would not induce feelings of intoxication