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the claim

THC, the main psychoactive compound in cannabis, produces intoxication by activating CB1 cannabinoid receptors in the brain.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
8 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that THC, the main psychoactive compound in cannabis, produces intoxication by activating CB1 cannabinoid receptors in the brain?

Yes. Two peer-reviewed sources state directly that THC's psychoactive/psychotomimetic effects arise from binding brain CB1 receptors, and several reference and primary-data sources confirm THC is the main psychoactive compound of cannabis and acts at CB1. The remaining items are about unrelated topics such as ocular effects or NEET cannabis use.

Verdict: SUPPORTED · 8 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 8
Cannabinoid receptor 1
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Cannabinoid receptor 1. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Cannabinoid_receptor_1

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More for · 7
Cannabinoid receptor 1 (O02777)
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Cannabinoid receptor 1 (O02777). (n.d.). uniprot.org. https://www.uniprot.org/uniprotkb/O02777/entry

THE MAIN ROLE OF DELTA-9-TETRAHYDROCANNABINOL (THC) TO DOWNREGULATE AN EXPRESSION OF CANNABINOID 1 (CB1) RECEPTOR IN CANNABIS WITHDRAWAL SYNDROME
2025
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Qhabibi, F. R. (2025). THE MAIN ROLE OF DELTA-9-TETRAHYDROCANNABINOL (THC) TO DOWNREGULATE AN EXPRESSION OF CANNABINOID 1 (CB1) RECEPTOR IN CANNABIS WITHDRAWAL SYNDROME. doi.org. https://doi.org/10.21776/ub.jppbr.2025.006.01.8

Role of pregnenolone derivative AEF0117 on the regulation of CB1 signaling that mediates behavioral effects of THC
2020
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Role of pregnenolone derivative AEF0117 on the regulation of CB1 signaling that mediates behavioral effects of THC. (2020). theses.hal.science. https://doi.org/10.70675/33eb301fz8e49z49ffzb830z8e8cd2041896

Prenatal exposure to cannabinoids evokes long-lasting functional alterations by targeting CB1 receptors on developing cortical neurons
2015
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Prenatal exposure to cannabinoids evokes long-lasting functional alterations by targeting CB1 receptors on developing cortical neurons. (2015). hdl.handle.net. https://hdl.handle.net/20.500.14352/93369

Conformational Study of Cannabinoid Docking to Cannabinoid Receptor 1 (CB1) via Linear and Nonlinear Circular Dichroism
2017
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Conformational Study of Cannabinoid Docking to Cannabinoid Receptor 1 (CB1) via Linear and Nonlinear Circular Dichroism. (2017). doi.org. https://doi.org/10.4172/2161-0398.1000227

Role of type-1 cannabinoid receptor in basal ganglia physiology
2023
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Role of type-1 cannabinoid receptor in basal ganglia physiology. (2023). theses.hal.science. https://doi.org/10.70675/925620b3zc1edz48eazb221zbdfd960242e8

Cannabinoid modulation of behavioral processes : from adolescence to adulthood ; Modulation des processus comportementaux par le système endocannabinoïde : de l'adolescence à l'âge adulte
2021
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Cannabinoid modulation of behavioral processes : from adolescence to adulthood ; Modulation des processus comportementaux par le système endocannabinoïde : de l'adolescence à l'âge adulte. (2021). tel.archives-ouvertes.fr. https://tel.archives-ouvertes.fr/tel-03578832

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