Cannabidiol effects on cannabis tolerance in heavy users
Part of Mental health clinical trials.
This study tests whether taking cannabidiol (CBD) through a special vaporizer can change how your body responds to cannabis, especially if you're a heavy user. It might help understand if CBD can reduce tolerance or dependence.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 45 years old.
- You have used cannabis heavily and often: 7–14 grams of high-potency cannabis per week, on at least 5 days per week, for the past month.
- You test positive for cannabis in a urine drug test.
- You are willing to not use cannabis for 4 hours before each study session.
- You are willing to eat two non-vegan full-fat yogurts to help the body absorb the study drug.
- You are not dependent on alcohol or other illicit drugs (except cannabis or tobacco/nicotine), and you have no personal or family history of psychosis or mania.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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