Updated on August 16, 2020.
Medical content reviewed by Dr. Joseph Rosado, MD, M.B.A, Chief Medical Officer
A new study found that CBD may reduce
withdrawal symptoms in heavy marijuana users aiming to cut their cannabis
consumption, the Daily Mail reported.
Researchers at University College London
wanted to test whether CBD, or cannabidiol, a key cannabis ingredient that
calms but does not produce a “high,” would reduce anxiety and insomnia when
patients weaned themselves off of marijuana. They divided 82 patients diagnosed
as severely addicted to marijuana into four groups and gave each group either a
placebo capsule or varying doses of CBD for a month.
The patients were then followed for six
months and had regular urine tests for THC. The study found that 400 mg of CBD
(the middle dose) halved the amount of cannabis that users smoked after six
months compared with the placebo, according to The New Scientist. A lower dose had no
effect and a higher dose did not improve the results. Patients on 400 mg of CBD
had more than twice as many THC-free days compared to those on placebo.
The researchers, who called the findings
“really remarkable,” believe the anti-anxiety effects of CBD helped the
patients reduce their marijuana intake. The results were presented at New Scientist Live, a science festival.