Cited by 196Cannabis and Cannabinoid ResearchNeurotransmitter Receptor Influence on BehaviorSubstance Abuse Treatment and Outcomes

Cannabidiol Attenuates the Appetitive Effects of Δ9-Tetrahydrocannabinol in Humans Smoking Their Chosen Cannabis

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Morgan, Celia JA, Freeman, Tom P, Schafer, Gráinne L, Curran, H Valerie·2010·Neuropsychopharmacology

Abstract

Worldwide cannabis dependence is increasing, as is the concentration of Delta(9)-tetrahydrocannabinol (THC) in street cannabis. At the same time, the concentration of the second most abundant cannabinoid in street cannabis, cannabidiol (CBD), is decreasing. These two cannabinoids have opposing effects both pharmacologically and behaviorally when administered in the laboratory. No research has yet examined how the ratio of these constituents impacts on the appetitive/reinforcing effects of cannabis in humans. A total of 94 cannabis users were tested 7 days apart, once while non-intoxicated and once while acutely under the influence of their own chosen smoked cannabis on dependence-related measures. Using an unprecedented methodology, a sample of cannabis (as well as saliva) was collected from each user and analyzed for levels of cannabinoids. On the basis of CBD : THC ratios in the cannabis, individuals from the top and bottom tertiles were directly compared on indices of the reinforcing effects of drugs, explicit liking, and implicit attentional bias to drug stimuli. When intoxicated, smokers of high CBD : THC strains showed reduced attentional bias to drug and food stimuli compared with smokers of low CBD : THC. Those smoking higher CBD : THC strains also showed lower self-rated liking of cannabis stimuli on both test days. Our findings suggest that CBD has potential as a treatment for cannabis dependence. The acute modulation of the incentive salience of drug cues by CBD may possibly generalize to a treatment for other addictive disorders.

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  1. Chopra IC Chopra RN The use of cannabis drugs in India Bulletin on Narcotics 1957 9 4 29
  2. Pertwee RG The diverse CB1 and CB2 receptor pharmacology of three plant cannabinoids: delta9-tetrahydrocannabinol, cannabidiol and delta9-tetrahydrocannabivarin Br.J.Pharmacol 2008 153 199 215 17828291 PMC2219532
  3. Robinson TE Berridge KC Addiction Annu.Rev.Psychol 2003 54 25 53 12185211

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Authors
Morgan, C. J., Freeman, T. P., Schafer, G. L., & Curran, H. V.
Affiliations
University College London (GB)
Corresponding author
Morgan, Celia JA
Venue
Neuropsychopharmacology
Published
2010-04-28
Volume
35
Issue
9
Pages
1879-1885
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W1972435539
Cited by
196
References
35
Citations by year
2026: 4 · 2025: 5 · 2024: 5 · 2023: 9 · 2022: 14 · 2021: 14 · 2020: 18 · 2019: 17 · 2018: 12 · 2017: 17 · 2016: 14 · 2015: 16 · 2014: 17 · 2013: 13 · 2012: 7
FWCI
8.02
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
  • UCL Discovery (University College London) (submittedVersion)
  • Trinity's Access to Research Output (TARA) (Trinity College Dublin) (submittedVersion)
Funders
Medical Research Council
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
Keywords
cannabidiol, delta-9-tetrahydrocannabinol, cannabis use disorder, THC:CBD ratio, cannabis smoking, drug reinforcement, attentional bias, incentive salience, drug liking
MeSH terms
Adolescent, Analysis of Variance, Appetitive Behavior, Cannabidiol, Marijuana Abuse, Choice Behavior, Chromatography, Liquid, Female, Hallucinogens, Humans, Male, Marijuana Smoking, Neuropsychological Tests, Reaction Time, Mass Spectrometry, Dronabinol, Young Adult

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