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psx:substance/cbn/claim/328d4b44-5088-4d6c-98cf-409caf6a0fb9

claim2026-05-07recordsupported

derived from · upstream

feeds · downstream

Closure of psx:substance/cbn/claim/328d4b44-5088-4d6c-98cf-409caf6a0fb9: 67 upstream, 80 downstream.

psx:substance/cbn/claim/328d4b44-5088-4d6c-98cf-409caf6a0fb9
├─ used  src/doi:10.3109/03602532.2013.849268  Exogenous cannabinoids as substrates, inhibitors, and inducers of human drug metabolizing enzymes: a systematic review.
  ├─ informed_by  claim/c56f43b8-d54c-44b0-8ba9-a4ec9012e3cc  Claim in pharmacokinetic-detail — supported
  ├─ informed_by  claim/463399a3-07c5-4c1d-8d98-188b0110d677  Claim in pharmacokinetic-detail — supported
    ├─ used  src/doi:10.1016/j.pnpbp.2024.110984  Evaluation of cannabimimetic effects of selected minor cannabinoids and Terpenoids in mice.
    ├─ used  src/doi:10.1007/s12210-020-00956-0  The early history of cannabinoid research
    ├─ used  src/doi:10.1089/can.2021.0006  Cannabinol and Sleep: Separating Fact from Fiction.
    ├─ used  src/pmid:8819477  Evaluation of binding in a transfected cell line expressing a peripheral cannabinoid receptor (CB2): identification of cannabinoid receptor subtype selective ligands.
    ├─ used  src/pmid:17641667  Meta-analysis of cannabinoid ligand binding affinity and receptor distribution: interspecies differences.
    ├─ used  src/doi:10.1016/j.bbrc.2026.153250  Species differences in pregnane X receptor activation by delta-9-tetrahydrocannabinol, cannabidiol, and cannabinol
    ├─ used  src/doi:10.1016/j.fmre.2023.05.023  Cannabichromene from full-spectrum hemp extract exerts acute anti-seizure effects through allosteric activation of GABAA receptors.
    ├─ used  src/doi:10.1186/s42238-022-00153-w  The effects of subacute exposure to a water-soluble cannabinol compound in male mice.
    ├─ used  src/doi:10.3389/fpsyt.2024.1322434  A critical assessment of the abuse, dependence and associated safety risks of naturally occurring and synthetic cannabinoids
    ├─ used  src/doi:10.3389/fpls.2016.00019  Cannabis sativa: The Plant of the Thousand and One Molecules
    ├─ used  src/doi:10.1039/c6np00074f  Phytocannabinoids: a unified critical inventory
    ├─ used  src/url:9978bf2f49e46cb8  CBN first isolation 1896 - Wood, Spivey, Easterfield history
    ├─ used  src/url:59bb91c85d13ebbb  CBN psychoactive effects humans - Perez-Reyes 1973 and Hollister 1973 review
    ├─ used  src/doi:10.1136/bmjopen-2022-071148  Cannabinol (CBN; 30 and 300 mg) effects on sleep and next-day function in insomnia disorder ('CUPID' study): protocol for a randomised, double-blind, placebo-controlled, cross-over, three-arm, proof-of-concept trial.
    ├─ used  src/pmid:2543  Cannabinol (CID 2543)
    ├─ used  src/doi:10.1016/bs.pbr.2025.07.006  Chemical diversity, receptor binding affinity, and pharmacology of phytocannabinoids: Insights into neuronal mechanisms.
    ├─ used  src/doi:10.1523/jneurosci.23-04-01398.2003  Nonpsychotropic Cannabinoid Receptors Regulate Microglial Cell Migration
    ├─ used  src/doi:10.1111/j.1476-5381.2010.01166.x  Effects of cannabinoids and cannabinoid-enriched Cannabis extracts on TRP channels and endocannabinoid metabolic enzymes
    ├─ used  src/doi:10.1016/j.fmre.2024.11.002  Antiepileptic activity and potential mechanism of full-spectrum hemp extract.
    ├─ used  src/doi:10.3389/fphar.2021.777804  Minor Cannabinoids: Biosynthesis, Molecular Pharmacology and Potential Therapeutic Uses
    ├─ used  src/pmid:11809870  Cannabinol enhancement of interleukin-2 (IL-2) expression by T cells is associated with an increase in IL-2 distal nuclear factor of activated T cell activity.
    ├─ used  src/pmid:10670588  AP-1 activity is negatively regulated by cannabinol through inhibition of its protein components, c-fos and c-jun.
    ├─ used  src/pmid:12668119  Attenuation of the ovalbumin-induced allergic airway response by cannabinoid treatment in A/J mice.
    ├─ used  src/pmid:16356335  Simultaneous and sensitive analysis of THC, 11-OH-THC, THC-COOH, CBD, and CBN by GC-MS in plasma after oral application of small doses of THC and cannabis extract.
    ├─ used  src/pmid:16237477  Pharmacokinetics of cannabinoids
    ├─ used  src/doi:10.1016/j.taap.2023.116654  Hepatic biotransformation of non-psychotropic phytocannabinoids and activity screening on cytochromes P450 and UDP-glucuronosyltransferases.
    ├─ used  src/pmid:17906686  The multidrug transporter ABCG2 (BCRP) is inhibited by plant-derived cannabinoids.
    ├─ used  src/pmid:16458258  The effects of cannabinoids on P-glycoprotein transport and expression in multidrug resistant cells.
    ├─ used  src/url:84a23753357894f2  INM-755 Phase 2 Clinical Trial Results - Epidermolysis Bullosa
    ├─ used  src/doi:10.1080/14660820510030149  Cannabinol delays symptom onset in SOD1 (G93A) transgenic mice without affecting survival.
    ├─ used  src/pmid:6271842  Cannabinoids in glaucoma: a primary screening procedure.
    ├─ used  src/doi:10.1016/j.bbadis.2021.166325  Cannabinol modulates neuroprotection and intraocular pressure: A potential multi-target therapeutic intervention for glaucoma.
    ├─ used  src/doi:10.1021/np8002673  Antibacterial cannabinoids from Cannabis sativa: a structure-activity study.
    ├─ used  src/doi:10.1093/jambio/lxaf214  The anti-biofilm activity of cannabinoids against methicillin-resistant Staphylococcus aureus.
    ├─ used  src/doi:10.3390/molecules29245970  The Anticancer Activity of Cannabinol (CBN) and Cannabigerol (CBG) on Acute Myeloid Leukemia Cells.
    ├─ used  src/doi:10.1016/j.bbalip.2025.159658  Impact of minor cannabinoids on key pharmacological targets of estrogen receptor-positive breast cancer.
    ├─ used  src/doi:10.3390/molecules25204682  Cannabinoid Combination Induces Cytoplasmic Vacuolation in MCF-7 Breast Cancer Cells.
    ├─ used  src/doi:10.1016/j.ntt.2014.09.003  Differences in receptor binding affinity of several phytocannabinoids do not explain their effects on neural cell cultures.
    ├─ used  src/url:3eeae07d67b1217a  CBN legal status United States, UK, Australia, Europe 2026
    ├─ derived_from  gen/ef2dc8c0-1b0a-4423-81b2-2d1987a5fb32  Generation — pipeline-v5
    ├─ generated_by  pub/8e9d86d2-b979-43b4-94a8-6cb2bc986f52  Publication — backfill
      ├─ used  search/e13b5e00-2d09-438f-a1cb-1281759792ef  Searched PubChem for "cannabinol"
      ├─ used  search/bed270a6-e9a3-4548-9303-161c86642999  Searched PubMed for "cannabinol CBN pharmacology receptor binding"
      ├─ used  search/e0635e94-e76b-4d59-b125-4a190e3099c4  Searched OpenAlex for "cannabinol CBN pharmacology cannabinoid receptor"
      ├─ used  search/f009055b-944b-4b35-83d5-465f80e45810  Searched PubMed for "cannabinol CBN sedation sleep effects"
      ├─ used  search/34818f09-00ae-40c2-9231-e8d5b3457ec7  Searched PubMed for "cannabinol CB1 CB2 receptor binding affinity Ki"
      ├─ used  search/e41a4eed-a64e-4845-be8e-95354c16cee6  Searched PubMed for "cannabinol antibacterial antimicrobial MRSA"
      ├─ used  search/cb73bb3b-c771-4739-bcb3-af77c04df7a3  Searched ClinicalTrials.gov for "cannabinol CBN"
      ├─ used  search/96a4bfe7-a44a-4a75-94f3-28ec7ded4bf8  Searched PubMed for "cannabinol pharmacokinetics metabolism CYP enzyme"
      ├─ used  search/1effab4d-1e81-4df4-be3f-dd2dac026a51  Searched OpenAlex for "cannabinol first isolation cannabis history Wood Spivey Easterfield"
      ├─ used  search/c332a14c-d1d7-427c-ab37-c44b578389c7  Searched PubMed for "cannabinol CB1 partial agonist in vivo functional"
      ├─ used  search/6d8b3c2e-9b63-4bb7-a4d2-fcc3a2031aa4  Searched PubMed for "cannabinol anticancer tumor apoptosis"
      ├─ used  search/24377002-1a2f-43a6-9355-c8f24bf823b7  Searched PubMed for "cannabinol immunomodulation cytokine T cell"
      ├─ used  search/6bae1c49-4873-4820-8f46-6698b45a6ab5  Searched PubMed for "cannabinol intraocular pressure glaucoma"
      ├─ used  search/1d1db400-2f91-416d-8236-6b725c77b47c  Searched WebSearch for "cannabinol CBN DEA Schedule I legal status United States 2026"
      ├─ used  search/18f29311-c69b-4e1b-b0bb-f23497e860f0  Searched WebSearch for "cannabinol first isolation 1896 Wood Spivey Easterfield cannabis history"
      ├─ used  search/0adc7065-a7ce-4c50-ac70-b3f1ee7eaec5  Searched PubMed for "cannabinol SOD1 G93A transgenic mice symptom onset survival Weydt 2005"
      ├─ used  search/866199c4-441c-436f-b8c6-6ce65ca3a8e6  Searched Crossref via verify_doi for "10.1080/14660820510030149"
      ├─ used  search/5ca557d4-63a6-4e6f-bd12-8a6ddaad716a  Searched WebSearch for "cannabinol ALS neuroprotection Weydt 2005 motor neuron disease onset delayed"
      ├─ used  search/89e800f9-f5f1-4007-adad-8c1f17dcde0e  Searched PubMed for "CUPID cannabinol sleep insomnia protocol"
      ├─ used  search/fdb710ba-d4c6-4181-9a9f-f4ab9ba0d046  Searched WebSearch/WebFetch for "INM-755 cannabinol epidermolysis bullosa Phase 2 trial results"
      ├─ used  search/fcc95c70-5b7f-4543-ae1c-0028de68d5b1  Searched PubMed for "cannabinol pharmacokinetics plasma administration"
      ├─ used  search/d25658fc-61b0-4dca-83c5-992d600efbce  Searched WebSearch for "cannabinol CBN psychoactive effects humans 1970s Hollister Perez-Reyes studies"
      └─ used  search/115b7110-0bc0-46a9-be34-08d3619fb98a  Searched Multiple databases for "CBN Ki CB1 CB2 receptor binding values"
├─ informed_by  section/pharmacokinetic-detail.full@1
  ├─ used  version/1  Revision 1
  ├─ used  claim/2aa74e6b-c3ff-4f4e-9af9-5e8965b804b4  Claim in pharmacology — supported
  ├─ used  claim/291d292b-1663-474a-ad6e-ba31351710ec  Claim in safety — supported
  ├─ used  claim/317a9177-4e0c-41da-957e-febc7a94c4ae  Claim in safety — supported
    ├─ derived_from  issue/notice@6cc1eca3752c  Issued notice
    ├─ derived_from  issue/info_card@4494cf6ef266  Issued info_card
    ├─ derived_from  issue/emergency@207cf682e28a  Issued emergency
    ├─ derived_from  issue/info_card@821faf44139b  Issued info_card
    ├─ derived_from  issue/emergency@7386375eac13  Issued emergency
    ├─ informed_by  section/pharmacology.full@1
    ├─ informed_by  section/safety.full@1
      ├─ used  claim/a4bd0ba7-6c1d-4742-83df-f5fd98ab029d  Claim in summary — partially_supported
      ├─ used  claim/b7f5fa85-deab-4ebd-b3a0-ed5b8450ad25  Claim in pharmacology — inconclusive  working
      ├─ used  claim/11fe8389-adb5-4660-b8af-60fa21790aed  Claim in neuroscience — inconclusive  working
      ├─ used  claim/91498093-ab48-41db-8576-2316a55183ca  Claim in summary — inconclusive  working
      ├─ used  claim/29c375a6-98cf-495b-8347-0c4169c7a4e4  Claim in history — inconclusive  working
      ├─ used  claim/cd20e6bc-0bc5-44c6-830b-8dc0e2842132  Claim in history — supported
      ├─ used  claim/aa950e61-9aff-457a-a8c5-a5eb8d0328b2  Claim in summary — supported
      ├─ used  claim/8add049f-a2ee-422c-8b2f-fbb29f90670e  Claim in safety — inconclusive  working
      ├─ used  claim/f78f429f-0a95-4703-bef7-747be71a9def  Claim in clinical-evidence — partially_supported
      ├─ used  claim/f9967cd0-2ec8-4a3a-a1f6-fc6de284cc81  Claim in summary — supported
      ├─ used  claim/4dc297be-93f7-456d-987b-e9f91eacdeec  Claim in pharmacology — supported
      ├─ used  claim/16493276-622e-44b3-9e8a-c8842ec5dc38  Claim in summary — supported
      ├─ used  claim/15a6adff-7406-444c-b0ec-283dbb08b313  Claim in pharmacology — supported
      ├─ used  claim/8ec31f8b-be59-4989-bfae-69941c03746b  Claim in receptor-pharmacology — supported
      ├─ used  claim/b9e7056d-7b34-4717-99f1-8c665c87254b  Claim in receptor-pharmacology — supported
      ├─ used  claim/189acc74-9380-4933-9828-2b80a0fc592f  Claim in summary — supported
      ├─ used  claim/3d16cd5f-9ab0-4aaf-9aa0-bb8d6f8287c2  Claim in pharmacology — supported
      ├─ used  claim/fcbc71c5-8a7d-48bd-b8ef-fea639bc742f  Claim in safety — supported
      ├─ used  claim/ef29696b-e487-45eb-9e01-c02a70b1449d  Claim in safety — inconclusive  working
      ├─ used  claim/65adf075-99ed-4d02-b68c-392942f80bef  Claim in summary — supported
      ├─ used  claim/ae204431-cb6c-483f-b2f7-1ca0259acd10  Claim in pharmacology — supported
      ├─ used  claim/9447cbc2-1467-4e8f-b3b0-f2db2af1b8d6  Claim in neuroscience — supported
      ├─ used  claim/8a7ad2a7-8b10-4f16-b285-98fe4be362fc  Claim in summary — supported
      ├─ used  claim/71d10682-0114-453a-afac-7620062835ad  Claim in safety — inconclusive  working
      ├─ used  claim/742bf769-017d-40c8-a9dc-154c89b43c5b  Claim in summary — supported
      ├─ used  claim/ab56d4f0-015a-47e6-8c17-0955dd58533e  Claim in safety — supported
      ├─ used  claim/95c85684-c42c-474f-a45e-1b5391afb027  Claim in safety — supported
      ├─ used  claim/66bc78e8-1568-4f82-ada0-93680d836597  Claim in botanical-overview — inconclusive  working
      ├─ used  claim/08f8ea0e-5f6e-4d8b-bba1-176c2c0c497e  Claim in botanical-overview — inconclusive  working
      ├─ used  claim/2354cd2f-956f-4aaa-9b6f-5f0645e8b34b  Claim in chemistry — inconclusive  working
      ├─ used  claim/a897b643-f101-4960-b7a4-4e35250ca3ee  Claim in chemistry — inconclusive  working
      ├─ used  claim/3066b46d-c31f-4c5f-b3b9-4a9780b63c7a  Claim in history — supported
      ├─ used  claim/e91322bd-2b9c-4384-a880-4f71e2df5ed2  Claim in safety — inconclusive  working
      ├─ used  claim/bfefaec8-fc00-43a4-898d-3c5176f6c41b  Claim in safety — inconclusive  working
      ├─ used  claim/eeda2e97-1e26-4b68-820b-37bb183cacd8  Claim in clinical-evidence — supported
      ├─ used  claim/461845a8-474f-4198-993e-23665c0b69f1  Claim in neuroscience — supported
      ├─ used  claim/fcd6e01b-cbaf-4330-884a-348b63330873  Claim in chemistry — inconclusive  working
      ├─ used  claim/aceacaea-92db-4e88-9060-94ffa51e495e  Claim in pharmacology — supported
      ├─ used  claim/626d5d52-51ad-405f-820e-8e57f9e0eb5f  Claim in receptor-pharmacology — supported
      ├─ used  claim/3ee13e3f-d4da-41fb-a830-807ad08d44d5  Claim in comparative-pharmacology — inconclusive  working
      ├─ used  claim/1c79c055-6f80-43f2-98cb-e767b7827278  Claim in pharmacology — supported
      ├─ used  claim/640dcffe-61f2-4d0d-a04d-90ab18908cc3  Claim in receptor-pharmacology — supported
      ├─ used  claim/fe1e11f8-8aac-41ef-af14-3303831fc5f2  Claim in neuroscience — supported
      ├─ used  claim/e052d763-0450-400b-a478-20e7ab6d0b46  Claim in pharmacology — supported
      ├─ used  claim/2d56d545-645f-4001-80e2-ba94f6cfa3b8  Claim in pharmacology — supported
      ├─ used  claim/a7bdcf52-9096-4489-9d86-80b65208b48b  Claim in pharmacology — inconclusive  working
      ├─ used  claim/414d3583-e004-457e-b88c-fce6eee9f44b  Claim in pharmacology — supported
      ├─ used  claim/19217b6c-0995-4fb3-a1ae-e9504f8456c8  Claim in receptor-pharmacology — supported
      ├─ used  claim/a043d382-ce01-497c-9ddf-ffd7d4e20003  Claim in neuroscience — supported
      ├─ used  claim/b66d928f-16f1-4b2c-a53c-7cb9fd56db39  Claim in pharmacology — inconclusive  working
      ├─ used  claim/a76f807e-3dc3-461e-8496-a2048e8ee291  Claim in neuroscience — inconclusive  working
      ├─ used  claim/a125fda7-fc9b-4117-8681-360cf24fd02f  Claim in pharmacology — inconclusive  working
      ├─ used  claim/86cd2a08-49dd-4d96-8625-fe3b967b5810  Claim in pharmacology — supported
      ├─ used  claim/992f52d9-aea0-49b2-89b8-96a76e6aeff7  Claim in pharmacology — supported
      ├─ used  claim/4c3178d9-ef81-44fd-a42c-c57be4dccd83  Claim in pharmacology — supported
      ├─ used  claim/995528ce-8f42-4281-8f62-ae6c20f12813  Claim in safety — supported
      ├─ used  claim/08d979b1-f7b5-47dd-9363-dab25527f77b  Claim in pharmacology — supported
      ├─ used  claim/1c220956-ad8a-43bb-8877-1f429d93335e  Claim in pharmacology — supported
      ├─ used  claim/7feffc47-c6de-4f11-ab02-9c1706438d72  Claim in safety — supported
      ├─ used  claim/0f417ad5-db43-44a8-a9e5-59b413975ce1  Claim in safety — supported
      ├─ used  claim/34ddfada-f854-448a-9591-6a43381f1bdb  Claim in receptor-pharmacology — supported
      ├─ used  claim/2958a09f-859c-4ed9-b5c5-6ae23701c04b  Claim in safety — not_supported  working
      ├─ used  claim/8a54805a-f0ba-4c42-b006-8360664593ff  Claim in clinical-evidence — supported
      ├─ used  claim/9559ed61-e05a-433b-8ba8-fc999cccf53a  Claim in clinical-evidence — supported
      ├─ used  claim/2246aa00-ec25-4c13-8667-3adf5a8abacc  Claim in clinical-evidence — supported
      ├─ used  claim/bd04936f-1c2e-46f7-9e43-aa204e34ec24  Claim in clinical-evidence — supported
      ├─ used  claim/161fa4f3-98f3-46ee-a643-5765b2fd80a9  Claim in clinical-evidence — supported
      └─ used  claim/22c1f64a-ab76-4489-bbc5-79a68e556c24  Claim in safety — supported
… closure truncated at 200 nodes

indented by distance from this node, not by parentage

1Provenance card

the boundary, as counts

Sources

4025 with DOI

8 strong · 28 moderate · 4 weak

Compilations

12026-05-07T11:26:08.794Z

pipeline-v5 · prompt hash not recorded — run predates 2026-09

Decisions

19last ruled 2026-06-04

0 awaiting a ruling

Issued documents

52026-10-19T20:31:06.198Z

notice · info card · emergency

Searches

230 with no results

queries and counts on the build

Claims checked

7656 supported

56 supported · 20 not

Correspondence

0received

consent field ships in Phase 4

Edges

249

derivations recorded for this entity

Complete over 40 sources, 1 compilation, and 19 decisions.Not here: the private journal (never).Working material — drafts, discards, unsupported claims — is listed below and readable on the working page.Cite: psychedex.org/substances/cbn/archive

2Build

one panel per compilation run

generation run 2026-05-07

65 min completedmodel pipeline-v5plan not recordedrun/c5aa14d6…

Selection

results seen131
selected by the model40
consumed as sources40

Verification

claims checked76
supported54
partially supported2
not supported1
inconclusive19
  • record
  • seen / partial
  • working

The model's own caveats

  • sparse_evidence
  • sparse_evidence

Reproduce

inputs
40 source keys (listed under Sources)
plan
not recorded — template version, prompt hash and git SHA are written from 2026-09 onward
model
pipeline-v5
streams
none — agent transcripts are persisted from 2026-09 onward
23 searches — query, source, results, what was kept and why
23 searches for this run
#sourcequeryseenkeptrationale
1PubMedcannabinol CB1 CB2 receptor binding affinity Ki44Specific binding affinity data for CBN
2PubMedcannabinol pharmacokinetics metabolism CYP enzyme33CYP metabolism data for CBN
3PubMedcannabinol CBN pharmacology receptor binding125Core pharmacology papers with receptor binding data
4ClinicalTrials.govcannabinol CBN103Directly relevant clinical trials of CBN
5OpenAlexcannabinol CBN pharmacology cannabinoid receptor105Landmark papers on cannabinoid pharmacology that include significant CBN data
6PubChemcannabinol11Primary chemical identity data for CBN verified
7PubMedcannabinol antibacterial antimicrobial MRSA43Antibacterial/antimicrobial data for CBN
8PubMedcannabinol CBN sedation sleep effects11Key systematic review directly addressing CBN sleep claims
9WebSearchcannabinol first isolation 1896 Wood Spivey Easterfield cannabis history100Historical discovery narrative not in PubMed
10WebSearchcannabinol CBN DEA Schedule I legal status United States 2026100Critical legal status data not in academic databases
11OpenAlexcannabinol first isolation cannabis history Wood Spivey Easterfield82Key history and neuroprotection papers for CBN
12PubMedcannabinol immunomodulation cytokine T cell33CBN immunomodulatory mechanism papers
13PubMedcannabinol intraocular pressure glaucoma52Direct CBN glaucoma/IOP data
14PubMedcannabinol anticancer tumor apoptosis83CBN-specific anticancer data
15PubMedcannabinol CB1 partial agonist in vivo functional30No CBN-specific partial agonist functional papers found
16PubMedcannabinol SOD1 G93A transgenic mice symptom onset survival Weydt 200511Key CBN neuroprotection study in ALS mouse model
17Multiple databasesCBN Ki CB1 CB2 receptor binding values40Cross-reference of binding affinity data across studies
18WebSearchcannabinol ALS neuroprotection Weydt 2005 motor neuron disease onset delayed100Historical ALS neuroprotection data contextualization
19Crossref via verify_doi10.1080/1466082051003014911DOI verification for Weydt ALS paper
20PubMedCUPID cannabinol sleep insomnia protocol11First published RCT protocol for CBN sleep study
21WebSearchcannabinol CBN psychoactive effects humans 1970s Hollister Perez-Reyes studies100Historical human studies - critical for psychoactivity section
22PubMedcannabinol pharmacokinetics plasma administration22Available pharmacokinetic data for CBN
23WebSearch/WebFetchINM-755 cannabinol epidermolysis bullosa Phase 2 trial results100Only available CBN dermatology clinical trial results
76 claims by section — every cited sentence, checked against its source
pharmacology19 · 15 ok
  • Conversely, CBN inhibits AP-1 activity through suppression of c-fos/c-jun and inhibition of ERK MAP kinase, providing an immunosuppressive counterpartsupported

    CBN inhibited binding to AP-1-containing sites from the IL-2 promoter, decreased nuclear expression of c-fos and c-jun, and inhibited ERK MAP kinases. pmid:10670588

  • At CB2, Showalter et al. (1996) reported Ki = 96.3 ± 14 nM against [³H]CP-55,940 at cloned human CB2, compared to Δ⁹-THC Ki = 36.4 ± 10 nM — placing CBN within roughly 3-fold of THC at this receptorsupported

    The affinity of cannabinol for CB2 receptors (Ki = 96.3 +/- 14 nM) was confirmed to be in approximately the same range as that of delta 9-THC (Ki = 36.4 +/- 10 nM). pmid:8819477

  • At CB1, published Ki values range widely (approximately 100–500 nM depending on assay conditions), with a meta-analysis of 211 cannabinoid binding studies noting that methodological sensitivity analyses did not strongly validate some CBN CB1 Ki values in the literaturesupported

    Pooled data from 211 studies measured ligand binding affinities at human or rat cannabinoid receptors CB1 and CB2. Sensitivity analyses did not support the numerical validity of cannabidiol, cannabinol... pmid:17641667

  • A 2025 systematic review confirmed that both THC and CBN show significantly higher CB1 affinity than CBD, CBG, and CBC.supported

    A systematic review and meta-analysis of binding affinities (Ki) for CB1, CB2 confirmed that THC and CBN showed high affinities for CB1 and CB2, while CBG, CBC, and CBD exhibited 10-100 times lower affinities. bs.pbr.2025.07.006

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • CBN exhibits functional context-dependence at CB2: while binding assays show partial agonism, Walter et al. (2003) demonstrated that CBN acts as a CB2 receptor antagonist in the context of 2-AG-induced microglial cell migration, blocking migration triggered by pathological neuronal stimulationsupported

    Cannabinol and cannabidiol, two nonpsychotropic ingredients present in the marijuana plant, prevent the 2-AG-induced cell migration by antagonizing the CB2 and abnormal-cannabidiol-sensitive receptors, respectively. jneurosci.23-04-01398.2003

  • TRPA1: Potent rat TRPA1 agonist and desensitizer, contributing to analgesic and anti-inflammatory potentialsupported

    CBC, CBD and CBN were potent rat TRPA1 agonists and desensitizers. j.1476-5381.2010.01166.x

  • TRPV2: Weak agonist with EC₅₀ = 77.7 µM — substantially weaker than CBD at this target; physiological significance at typical cannabinoid concentrations is unclearsupported

    All non-acid cannabinoids, except CBC and CBN, potently activated and desensitized rat TRPV2. CBN had EC50=77.7 µM at TRPV2. j.1476-5381.2010.01166.x

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Pregnane X receptor (PXR/NR1I2): CBN is a human PXR agonist. At 10 µM, CBN activated hPXR 17-fold, rPXR 4-fold, and mPXR 3-fold in reporter gene assays. The minimum effective concentration for hPXR activation was 0.3 µM — within the pharmacological range — carrying significant drug interaction implications via CYP3A4 inductionsupported

    CBN (10 µM) activated human PXR by 17-fold, rat PXR by 4-fold, and mouse PXR by 3-fold. Minimum effective concentration for hPXR activation by CBN was 0.3 µM. j.bbrc.2026.153250

  • GABA_A receptor: Anti-seizure effects observed in hemp extract studies with involvement of GABA_A receptor allosteric modulationsupported

    CBN showed significant anti-seizure effects. Investigation of allosteric modulation on the GABAA receptor. j.fmre.2023.05.023

  • GABA_A receptor: Anti-seizure effects observed in hemp extract studies with involvement of GABA_A receptor allosteric modulationsupported

    CBN was involved in the anti-seizure process. GABAA receptor seems to be the primary anti-epileptic target of full-spectrum hemp extract. j.fmre.2024.11.002

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • In vivo, CBN (50 mg/kg i.p.) significantly attenuated Th2 cytokines (IL-4, IL-5, IL-13) and reduced IgE levels and mucus overproduction in an ovalbumin-induced allergic airway mouse model.supported

    CBN (50 mg/kg ip) significantly attenuated elevation of IL-2, IL-4, IL-5, IL-13 mRNA in lungs after ovalbumin challenge. Serum IgE elevation and mucus overproduction also attenuated. pmid:12668119

  • In one analytical study, CBN was not detected in plasma after oral administration of small doses of cannabis extract (detection limit approximately 1.1 ng/mL by GC-MS), suggesting extremely poor oral bioavailability when present only as a trace constituent.supported

    CBN was not detected in plasma after oral administration of 10mg THC + 5.4mg CBD cannabis extract. GC-MS analytical method developed with CBN detection limit of 1.1 ng/mL. pmid:16356335

  • General cannabinoid pharmacokinetic principles apply: high lipophilicity drives extensive tissue distribution, high first-pass hepatic metabolism limits oral bioavailability, and elimination half-lives are prolonged by redistribution from adipose tissuesupported

    High first-pass metabolism affects oral cannabinoids. Cannabinoids distributed particularly to fatty tissues. pmid:16237477

  • Havlasek et al. (2023) identified CYP1A2, CYP2C9, CYP2C19, and CYP2D6 as hepatic biotransformation pathways, with CBN being the most rapidly biotransformed among the phytocannabinoids testedsupported

    CBN was most rapidly metabolized of the phytocannabinoids tested. CBN primarily metabolized by CYPs 1A2, 2C9, 2C19 and 2D6. j.taap.2023.116654

  • A systematic review also noted CYP2C9 and CYP3A4 involvementsupported

    CYP-450 enzymes as potential significant contributors to the primary metabolism of CBN: CYPs 2C9, 3A4. 03602532.2013.849268

safety15 · 9 ok
  • Claim in safety — inconclusiveinconclusiveworking →

  • This cytotoxicity did not correlate with receptor binding affinity, suggesting a non-receptor-mediated mechanism at suprapharmacological concentrationssupported

    Ki values of phytocannabinoids to human CB1 and CB2 receptors were detected... Cytotoxic properties of CBN, CBDV and CBG were found in N18TG2 neuroblastoma cells. j.ntt.2014.09.003

  • Claim in safety — inconclusiveinconclusiveworking →

  • Heal et al. (2024) assessed non-psychoactive cannabinoids broadly and concluded they do not produce intoxicating, cognitive, or rewarding properties in humanssupported

    Non-psychoactive cannabinoids do not produce intoxicating, cognitive or rewarding properties in humans. fpsyt.2024.1322434

  • Claim in safety — inconclusiveinconclusiveworking →

  • Heal et al. (2024) assessed non-psychoactive cannabinoids and found no intoxicating or rewarding properties, consistent with very low dependence liabilitysupported

    Non-psychoactive cannabinoids do not produce intoxicating, cognitive or rewarding properties in humans. fpsyt.2024.1322434

  • PXR/CYP3A4 induction: CBN activates the pregnane X receptor at concentrations as low as 0.3 µM, inducing CYP3A4 expressionsupported

    Minimum effective concentration for hPXR activation by CBN was 0.3 µM. CBN is a human PXR agonist with preferential activation of hPXR over rodent PXR. j.bbrc.2026.153250

  • CYP2C9 competition: As a CYP2C9 substrate, CBN may competitively inhibit the metabolism of other CYP2C9 substrates, potentially increasing plasma levels of warfarin, phenytoin, and some NSAIDs.supported

    CYP-450 enzymes as potential significant contributors to the primary metabolism of CBN: CYPs 2C9, 3A4. 03602532.2013.849268

  • CYP2C9 competition: As a CYP2C9 substrate, CBN may competitively inhibit the metabolism of other CYP2C9 substrates, potentially increasing plasma levels of warfarin, phenytoin, and some NSAIDs.supported

    CBN primarily metabolized by CYPs 1A2, 2C9, 2C19 and 2D6. j.taap.2023.116654

  • CBN inhibits the ABCG2 (BCRP) multidrug efflux transporter, which could increase the bioavailability of anticancer drugs that are ABCG2 substrates (e.g., topotecan, mitoxantrone)supported

    Cannabinoids including CBN, CBD, and THC interact with the related multidrug transporter ABCG2. CBN inhibits ABCG2 activity. pmid:17906686

  • Claim in safety — not_supportednot supportedworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Competitive inhibition at CYP2C9 poses a relative contraindication for concurrent warfarin use, where even modest changes in metabolism can produce clinically significant alterations in INR.supported

    CYP-450 enzymes as potential significant contributors to the primary metabolism of CBN: CYPs 2C9, 3A4. 03602532.2013.849268

  • Claim in safety — inconclusiveinconclusiveworking →

  • GC-MS confirmation testing differentiates CBN from THC metabolites (detection limit approximately 1.1 ng/mL for CBN in plasma).supported

    GC-MS analytical method developed with CBN detection limit of 1.1 ng/mL. pmid:16356335

summary10 · 9 ok
  • It acts as a partial agonist at both CB1 and CB2 receptors with approximately 1/4 to 1/10 the potency of THC at CB1, and possesses a broader multi-target pharmacological profile encompassing TRP channels, the pregnane X receptor, and GABA_A allosteric modulationpartially supported

    This study sought to evaluate select minor cannabinoids and terpenes for Δ9-THC-like psychoactivity in mouse Δ9-THC drug discrimination and determine their binding affinities at CB1 and CB2 receptors. j.pnpbp.2024.110984

  • Claim in summary — inconclusiveinconclusiveworking →

  • Structure elucidation by Adams and Todd in the early 1940s enabled the synthetic cannabinoid era, culminating in Mechoulam and Gaoni's identification of Δ⁹-THC in 1964supported

    Research into the pharmacology of individual cannabinoids that began in the 1940s, several decades after the presence of a cannabinoid was first detected in cannabis, is concisely reviewed. pmid:16402100

  • Contemporary research interest centers on CBN's potential therapeutic applications in dermatology, neuroprotection, antimicrobial activity, and sleep — though for the last of these, a systematic review of all eligible human studies found insufficient evidence to support the widely marketed sleep-promoting claims.supported

    Consequently, there is insufficient published evidence to support sleep-related claims. can.2021.0006

  • At the CB2 receptor, CBN binds with Ki = 96.3 ± 14 nM — within roughly 3-fold of THCsupported

    The affinity of cannabinol for CB2 receptors (Ki = 96.3 +/- 14 nM) was confirmed to be in approximately the same range as that of delta 9-THC (Ki = 36.4 +/- 10 nM). pmid:8819477

  • CB1 affinity values range widely across studies (approximately 100–500 nM) due to methodological variability in radioligand binding assayssupported

    Sensitivity analyses did not support the numerical validity of cannabidiol, cannabinol, 2-arachidonoyl glycerol and all ligands at RnCB2. pmid:17641667

  • Beyond cannabinoid receptors, CBN activates TRPA1 (contributing to analgesic potential), acts as a potent human pregnane X receptor agonist with a minimum effective concentration of 0.3 µM (carrying significant CYP3A4 induction and drug interaction implications), and demonstrates GABA_A receptor allosteric modulation linked to anti-seizure effects in preclinical models.supported

    CBN (10 µM) activated human PXR by 17-fold, rat PXR by 4-fold, and mouse PXR by 3-fold. Minimum effective concentration for hPXR activation by CBN was 0.3 µM. j.bbrc.2026.153250

  • Beyond cannabinoid receptors, CBN activates TRPA1 (contributing to analgesic potential), acts as a potent human pregnane X receptor agonist with a minimum effective concentration of 0.3 µM (carrying significant CYP3A4 induction and drug interaction implications), and demonstrates GABA_A receptor allosteric modulation linked to anti-seizure effects in preclinical models.supported

    CBN showed significant anti-seizure effects. Investigation of allosteric modulation on the GABAA receptor. j.fmre.2023.05.023

  • Preclinical safety data from subacute mouse exposure suggest an acceptable safety profile at therapeutic doses, and the largest human safety dataset — a Phase 2 topical trial in 19 epidermolysis bullosa patients — reported no serious drug-related adverse eventssupported

    Physiological and behavioral effects of subacute exposure to therapeutic and low pharmacological levels of a water-soluble CBN nano-emulsion (CBNight) in male mice. s42238-022-00153-w

  • Dependence liability is considered very low based on the absence of intoxicating or rewarding properties at typical doses, though no direct self-administration or withdrawal characterization studies have been publishedsupported

    Non-psychoactive cannabinoids do not produce intoxicating, cognitive or rewarding properties in humans. fpsyt.2024.1322434

clinical-evidence7 · 7 ok
  • Neuroprotection (ALS): Weydt et al. (2005) demonstrated that CBN (5 mg/kg/day subcutaneous) delayed disease onset by more than 2 weeks in SOD1(G93A) transgenic mice — an amyotrophic lateral sclerosis model. Survival was not affected. No human data exist.supported

    CBN was delivered via subcutaneously implanted osmotic mini-pumps (5 mg/kg/day)... Treatment significantly delayed disease onset by more than two weeks while survival was not affected in SOD1 (G93A) mouse model of ALS. 14660820510030149

  • The CUPID study represents the first formal randomized controlled trial of CBN for insomnia.supported

    Protocol for RCT testing CBN 30mg and 300mg vs placebo in insomnia disorder. bmjopen-2022-071148

  • Corroon (2021) identified a total of 8 eligible human studies across all endpoints and concluded the evidence base is insufficient to support either cannabis-like psychoactive effects or sleep-promoting effects.partially supported

    Consequently, there is insufficient published evidence to support sleep-related claims. In addition, evidence demonstrating that CBN itself elicits cannabis-like effects in humans is mixed. can.2021.0006

  • Glaucoma (IOP reduction): Early data demonstrated CBN reduces intraocular pressure. Somvanshi et al. (2022) extended this with neuroprotective and IOP-lowering effects in glaucoma models.supported

    Evaluates the role of cannabinol (CBN) on RGC protection, modulation of intraocular pressure (IOP), and effects on extracellular matrix proteins using in vitro and in vivo models of glaucoma. j.bbadis.2021.166325

  • Antimicrobial (MRSA): CBN demonstrates antibacterial activity against methicillin-resistant Staphylococcus aureus, with recent work confirming anti-biofilm activity.supported

    All five major cannabinoids including cannabinol (5) showed potent activity against a variety of methicillin-resistant Staphylococcus aureus (MRSA) strains of current clinical relevance. np8002673

  • Anticancer: In vitro effects have been reported in acute myeloid leukemia cells (dose-dependent, p53 activation), ER+ breast cancer cells (most pronounced effects among minor cannabinoids tested), and MCF-7 breast cancer cells (cytoplasmic vacuolation in cannabinoid combinations). All anticancer data are from cell lines at concentrations (>5–40 µM) far above physiologically achievable plasma levels. No animal tumor model or clinical cancer data for CBN exist.supported

    CBN inhibited cell growth and induced THP-1 (AML) cell apoptosis and cell cycle arrest in a dose- and time-dependent manner. Correlation between CBN doses >50 µM and p53 activation. molecules29245970

  • Anticancer: In vitro effects have been reported in acute myeloid leukemia cells (dose-dependent, p53 activation), ER+ breast cancer cells (most pronounced effects among minor cannabinoids tested), and MCF-7 breast cancer cells (cytoplasmic vacuolation in cannabinoid combinations). All anticancer data are from cell lines at concentrations (>5–40 µM) far above physiologically achievable plasma levels. No animal tumor model or clinical cancer data for CBN exist.supported

    CBN caused the most pronounced anticancer effects in ER+ breast cancer models. j.bbalip.2025.159658

neuroscience6 · 4 ok
  • Claim in neuroscience — inconclusiveinconclusiveworking →

  • Claim in neuroscience — inconclusiveinconclusiveworking →

  • CBN's CB2 antagonism in the context of microglial migration has neurological implicationssupported

    Cannabinol and cannabidiol, two nonpsychotropic ingredients present in the marijuana plant, prevent the 2-AG-induced cell migration by antagonizing the CB2... Microglial cells express CB2 receptors at the leading edge of lamellipodia. jneurosci.23-04-01398.2003

  • CBN's anti-seizure effects in hemp extract studies implicate GABA_A receptor allosteric modulation — a mechanism distinct from CB1 partial agonismsupported

    CBN showed significant anti-seizure effects. Investigation of allosteric modulation on the GABAA receptor. j.fmre.2023.05.023

  • CBN's anti-seizure effects in hemp extract studies implicate GABA_A receptor allosteric modulation — a mechanism distinct from CB1 partial agonismsupported

    CBN was involved in the anti-seizure process. GABAA receptor seems to be the primary anti-epileptic target of full-spectrum hemp extract. j.fmre.2024.11.002

  • Does CBN's GABA_A modulation produce distinct EEG signatures (e.g., increased spindle density, altered slow-wave activity)? The CUPID trial includes sleep staging as a secondary endpoint and may address this.supported

    Protocol for RCT testing CBN 30mg and 300mg vs placebo in insomnia disorder. Primary outcome: wake after sleep onset by polysomnography. bmjopen-2022-071148

receptor-pharmacology6 · 6 ok
  • CBN is a potent human pregnane X receptor (PXR/NR1I2) agonistsupported

    CBN is a human PXR agonist with preferential activation of hPXR over rodent PXR. j.bbrc.2026.153250

  • McPartland et al. (2007) conducted sensitivity analyses across 211 cannabinoid binding studies and explicitly noted that some CBN Ki values in the literature should be interpreted with cautionsupported

    Pooled data from 211 studies measured ligand binding affinities at human or rat cannabinoid receptors CB1 and CB2. Sensitivity analyses did not support the numerical validity of cannabidiol, cannabinol... pmid:17641667

  • A 2025 systematic meta-analysis confirmed that CBN shows high CB1 affinity — significantly higher than CBD, CBG, or CBC — but did not resolve the inter-study variability for CBN specifically.supported

    THC and CBN showed high affinities for CB1 and CB2, while CBG, CBC, and CBD exhibited 10-100 times lower affinities. bs.pbr.2025.07.006

  • CBN blocked pathological neuronal stimulation-triggered microglial migration at concentrations consistent with its binding affinitysupported

    Cannabinol and cannabidiol, two nonpsychotropic ingredients present in the marijuana plant, prevent the 2-AG-induced cell migration by antagonizing the CB2... receptors. jneurosci.23-04-01398.2003

  • CBN showed significant anti-seizure effects in hemp extract studies, with evidence pointing to GABA_A receptor allosteric modulation as a contributing mechanismsupported

    CBN was involved in the anti-seizure process. GABAA receptor seems to be the primary anti-epileptic target of full-spectrum hemp extract. j.fmre.2024.11.002

  • CBN inhibits the ABCG2 (BCRP) multidrug efflux transporter, which is relevant in oncology settings where cancer drug resistance is mediated by ABCG2supported

    CBN inhibits ABCG2 activity. pmid:17906686

history4 · 3 ok
  • The first formal randomized controlled trial specifically investigating CBN for insomnia — the CUPID study, testing 30 mg and 300 mg CBN versus placebo — has been protocolized but results remain unpublished as of 2026.supported

    Protocol for RCT testing CBN 30mg and 300mg vs placebo in insomnia disorder. Primary outcome: wake after sleep onset by polysomnography. bmjopen-2022-071148

  • Claim in history — inconclusiveinconclusiveworking →

  • The complete structure was independently elucidated in the early 1940s by Roger Adams in the United States and by Alexander Todd (later a Nobel laureate) in the United Kingdomsupported

    Contributions by Roger Adams and Alexander Todd. Includes structure elucidation of cannabinol. s12210-020-00956-0

  • Pharmacological research on CBN began in the 1940s with studies on individual cannabinoidssupported

    Research into the pharmacology of individual cannabinoids that began in the 1940s, several decades after the presence of a cannabinoid was first detected in cannabis, is concisely reviewed. pmid:16402100

chemistry3 · 0 ok
  • Claim in chemistry — inconclusiveinconclusiveworking →

  • Claim in chemistry — inconclusiveinconclusiveworking →

  • Claim in chemistry — inconclusiveinconclusiveworking →

pharmacokinetic-detail3 · 3 ok
  • Nadulski et al. (2005): CBN was not detected in plasma (LOD ~1.1 ng/mL by GC-MS) after oral administration of small doses of cannabis extract, despite being present in the administered extract. This suggests extremely poor oral bioavailability when CBN is present only as a trace component.supported

    CBN was not detected in plasma after oral administration of 10mg THC + 5.4mg CBD cannabis extract. GC-MS analytical method developed with CBN detection limit of 1.1 ng/mL. pmid:16356335

  • In the absence of CBN-specific human PK data, general cannabinoid pharmacokinetic principles provide context:supported

    Review focuses on THC pharmacokinetics but also includes known information for cannabinol and cannabidiol. pmid:16237477

  • Metabolism: CBN is metabolized by multiple hepatic CYP enzymes. Havlasek et al. (2023) identified CYP1A2, CYP2C9, CYP2C19, and CYP2D6 as biotransformation pathways, with CBN being the most rapidly biotransformed among the phytocannabinoids tested in their panel (which included CBD, CBG, CBC, and CBDV). A systematic review by Stout and Cimino (2014) additionally noted CYP2C9 and CYP3A4 involvement. The rapid biotransformation rate likely contributes to high first-pass metabolism.supported

    CYP-450 enzymes as potential significant contributors to the primary metabolism of CBN: CYPs 2C9, 3A4. 03602532.2013.849268

botanical-overview2 · 0 ok
  • Claim in botanical-overview — inconclusiveinconclusiveworking →

  • Claim in botanical-overview — inconclusiveinconclusiveworking →

comparative-pharmacology1 · 0 ok
  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

3Sources

40 consumed · sorted by year · feeds = sections resting on it

Sources 1 to 30
yearsourcetierstatusfeeds
2026CBN legal status United States, UK, Australia, Europe 2026Various sourcesurl:3eeae07d67b1217aweakconsumedcited only
2026Species differences in pregnane X receptor activation by delta-9-tetrahydrocannabinol, cannabidiol, and cannabinolLau AJ, Chang TKH · Biochemical and Biophysical Research Communicationsdoi:10.1016/j.bbrc.2026.153250moderateconsumed4 sections
2025Antiepileptic activity and potential mechanism of full-spectrum hemp extract.Jin Z, Huang Z · Fundamental researchdoi:10.1016/j.fmre.2024.11.002moderateconsumed3 sections
2025Chemical diversity, receptor binding affinity, and pharmacology of phytocannabinoids: Insights into neuronal mechanisms.Queiroz CM, de Oliveira Koren L, da Silva CRP, Ribeiro S, Silva SRB · Progress in Brain Researchdoi:10.1016/bs.pbr.2025.07.006strongconsumed3 sections
2025Impact of minor cannabinoids on key pharmacological targets of estrogen receptor-positive breast cancer.Almeida CF, Correia-da-Silva G, Ribeiro AP, Teixeira N, Amaral C · Biochimica et biophysica acta. Molecular and cell biology of lipidsdoi:10.1016/j.bbalip.2025.159658moderateconsumed1 section
2025The anti-biofilm activity of cannabinoids against methicillin-resistant Staphylococcus aureus.Kwong PTH, Das T, Arnold JC, Chan HK, Kwok PCL · Journal of applied microbiologydoi:10.1093/jambio/lxaf214moderateconsumedcited only
2024A critical assessment of the abuse, dependence and associated safety risks of naturally occurring and synthetic cannabinoidsHeal DJ, Gosden J, Smith SL · Frontiers in Psychiatrydoi:10.3389/fpsyt.2024.1322434strongconsumed2 sections
2024Cannabichromene from full-spectrum hemp extract exerts acute anti-seizure effects through allosteric activation of GABAA receptors.Wang Z, Zheng H, Yang H, et al. · Fundamental researchdoi:10.1016/j.fmre.2023.05.023moderateconsumed3 sections
2024Cannabinol (CID 2543)PubChempmid:2543moderateconsumed1 section
2024Evaluation of cannabimimetic effects of selected minor cannabinoids and Terpenoids in mice.Wiley JL, Marusich JA, Blough BE, et al. · Progress in neuro-psychopharmacology & biological psychiatrydoi:10.1016/j.pnpbp.2024.110984moderateconsumed3 sections
2024The Anticancer Activity of Cannabinol (CBN) and Cannabigerol (CBG) on Acute Myeloid Leukemia Cells.Kadriya A, Forbes-Robertson S, Falah M · Moleculesdoi:10.3390/molecules29245970moderateconsumed1 section
2023Cannabinol (CBN; 30 and 300 mg) effects on sleep and next-day function in insomnia disorder ('CUPID' study): protocol for a randomised, double-blind, placebo-controlled, cross-over, three-arm, proof-of-concept trial.Lavender I, McCartney D, Marshall N, Suraev A, Irwin C, et al. · BMJ opendoi:10.1136/bmjopen-2022-071148strongconsumed4 sections
2023Hepatic biotransformation of non-psychotropic phytocannabinoids and activity screening on cytochromes P450 and UDP-glucuronosyltransferases.Havlasek J, Vrba J, Zatloukalova M, et al. · Toxicology and applied pharmacologydoi:10.1016/j.taap.2023.116654moderateconsumed2 sections
2023INM-755 Phase 2 Clinical Trial Results - Epidermolysis BullosaInMed Pharmaceuticalsurl:84a23753357894f2weakconsumedcited only
2022Cannabinol modulates neuroprotection and intraocular pressure: A potential multi-target therapeutic intervention for glaucoma.Somvanshi RK, Zou S, Kadhim S, Padania S, Hsu E, Kumar U · Biochimica et biophysica acta. Molecular basis of diseasedoi:10.1016/j.bbadis.2021.166325moderateconsumed1 section
2022The effects of subacute exposure to a water-soluble cannabinol compound in male mice.Bailey MM, Emily Mills MC, Haas AE, Bailey K, Kaufmann RC · Journal of cannabis researchdoi:10.1186/s42238-022-00153-wmoderateconsumed2 sections
2021Cannabinol and Sleep: Separating Fact from Fiction.Corroon J · Cannabis and cannabinoid researchdoi:10.1089/can.2021.0006strongconsumed3 sections
2021CBN psychoactive effects humans - Perez-Reyes 1973 and Hollister 1973 reviewCannabis and Cannabinoid Research (summary)url:59bb91c85d13ebbbweakconsumedcited only
2021Minor Cannabinoids: Biosynthesis, Molecular Pharmacology and Potential Therapeutic UsesWalsh KB, McKinney AE, Holmes AE · Frontiers in Pharmacologydoi:10.3389/fphar.2021.777804moderateconsumed2 sections
2020Cannabinoid Combination Induces Cytoplasmic Vacuolation in MCF-7 Breast Cancer Cells.Schoeman R, Beukes N, Frost C · Moleculesdoi:10.3390/molecules25204682moderateconsumedcited only
2020CBN first isolation 1896 - Wood, Spivey, Easterfield historyWeb historical sourcesurl:9978bf2f49e46cb8weakconsumedcited only
2020The early history of cannabinoid researchAppendino G · Rendiconti Lincei. Scienze Fisiche e Naturalidoi:10.1007/s12210-020-00956-0moderateconsumed2 sections
2016Cannabis sativa: The Plant of the Thousand and One MoleculesAndre CM, Hausman JF, Guerriero G · Frontiers in Plant Sciencedoi:10.3389/fpls.2016.00019moderateconsumed1 section
2016Phytocannabinoids: a unified critical inventoryHanus LO, Meyer S, Munoz E, Taglialatela-Scafati O, Appendino G · Natural Product Reportsdoi:10.1039/c6np00074fstrongconsumed2 sections
2014Differences in receptor binding affinity of several phytocannabinoids do not explain their effects on neural cell cultures.Rosenthaler S, Pöhn B, Kolmanz C, Huu CN, Krewenka C, Huber A, Kranner B, Rausch WD, Moldzio R · Neurotoxicology and teratologydoi:10.1016/j.ntt.2014.09.003moderateconsumed1 section
2014Exogenous cannabinoids as substrates, inhibitors, and inducers of human drug metabolizing enzymes: a systematic review.Stout SM, Cimino NM · Drug metabolism reviewsdoi:10.3109/03602532.2013.849268strongconsumed3 sections
2011Effects of cannabinoids and cannabinoid-enriched Cannabis extracts on TRP channels and endocannabinoid metabolic enzymesDe Petrocellis L, Ligresti A, Moriello AS, et al. · British Journal of Pharmacologydoi:10.1111/j.1476-5381.2010.01166.xmoderateconsumed1 section
2008Antibacterial cannabinoids from Cannabis sativa: a structure-activity study.Appendino G, Gibbons S, Giana A, Pagani A, Grassi G, Stavri M, Smith E, Rahman MM · Journal of natural productsdoi:10.1021/np8002673moderateconsumed1 section
2007Meta-analysis of cannabinoid ligand binding affinity and receptor distribution: interspecies differences.McPartland JM, Glass M, Pertwee RG · British journal of pharmacologypmid:17641667strongconsumed3 sections
2007The multidrug transporter ABCG2 (BCRP) is inhibited by plant-derived cannabinoids.Holland ML, Lau DT, Allen JD, Arnold JC · British journal of pharmacologypmid:17906686moderateconsumed2 sections
Show all 40 sources — 10 more
Sources 31 to 40
yearsourcetierstatusfeeds
2006The effects of cannabinoids on P-glycoprotein transport and expression in multidrug resistant cells.Holland ML, Panetta JA, Hoskins JM, Bebawy M, Roufogalis BD, Allen JD, Arnold JC · Biochemical pharmacologypmid:16458258moderateconsumed1 section
2005Cannabinol delays symptom onset in SOD1 (G93A) transgenic mice without affecting survival.Weydt P, Hong S, Witting A, Möller T, Stella N, Kliot M · Amyotrophic lateral sclerosis and other motor neuron disordersdoi:10.1080/14660820510030149moderateconsumed1 section
2005Pharmacokinetics of cannabinoidsMcGilveray IJ · Pain Research and Managementpmid:16237477strongconsumed2 sections
2005Simultaneous and sensitive analysis of THC, 11-OH-THC, THC-COOH, CBD, and CBN by GC-MS in plasma after oral application of small doses of THC and cannabis extract.Nadulski T, Sporkert F, Schnelle M, Stadelmann AM, Roser P, et al. · Journal of analytical toxicologypmid:16356335moderateconsumed3 sections
2003Attenuation of the ovalbumin-induced allergic airway response by cannabinoid treatment in A/J mice.Jan TR, Farraj AK, Harkema JR, Kaminski NE · Toxicology and applied pharmacologypmid:12668119moderateconsumed1 section
2003Nonpsychotropic Cannabinoid Receptors Regulate Microglial Cell MigrationWalter L, Franklin A, Witting A, Wade C, Xie Y, et al. · Journal of Neurosciencedoi:10.1523/jneurosci.23-04-01398.2003moderateconsumed3 sections
2002Cannabinol enhancement of interleukin-2 (IL-2) expression by T cells is associated with an increase in IL-2 distal nuclear factor of activated T cell activity.Jan TR, Rao GK, Kaminski NE · Molecular pharmacologypmid:11809870moderateconsumed1 section
2000AP-1 activity is negatively regulated by cannabinol through inhibition of its protein components, c-fos and c-jun.Faubert BL, Kaminski NE · Journal of leukocyte biologypmid:10670588moderateconsumed1 section
1996Evaluation of binding in a transfected cell line expressing a peripheral cannabinoid receptor (CB2): identification of cannabinoid receptor subtype selective ligands.Showalter VM, Compton DR, Martin BR, Abood ME · The Journal of pharmacology and experimental therapeuticspmid:8819477moderateconsumed2 sections
1981Cannabinoids in glaucoma: a primary screening procedure.Elsohly MA, Harland E, Murphy JC, Wirth P, Waller CW · Journal of clinical pharmacologypmid:6271842moderateconsumedcited only

4Docket

one filing per activity — decisions, correspondence, reports

  1. 0012026-05-07revisionRevision 1

    Initial LLM generation (v5 pipeline, wiki, prose phase)

    psx:substance/cbn/version/1
  2. 0022026-06-04proposal17 value proposals approved together

    one review action inferred from a shared reviewer and instant — the graph records one activity per proposal

    17 items in this filing

    • dependence · full
    • withdrawal
    • tolerance
    • dose_tier · threshold
    • dose_tier · light
    • dose_tier · common
    • dose_tier · strong
    • dose_tier · heavy
    • dosage · oral
    • duration · oral · total
    • contraindication · metabolic
    • contraindication · metabolic
    • contraindication · pregnancy_breastfeeding
    • contraindication · other
    • contraindication · other
    • contraindication · hepatic
    psx:substance/cbn/proposal/toxicity/8eecef14-76b5-43d3-9c19-123aec55335c
  3. 0032026-06-04publicationPublication — backfill

5Issued documents

what the notice, info card and emergency page said, by hash

Issued documents
documentcontent hashissuedfrom versionsuperseded
emergency7386375eac1334714f070b93…2026-10-19 20:31Revision 1current
info_card821faf44139ba2e561085d1c…2026-10-19 20:31Revision 1current
emergency207cf682e28a91d88136b9a2…2026-09-04 04:29Revision 1superseded2026-10-19
info_card4494cf6ef2662b8d92416dd5…2026-09-04 04:29Revision 1superseded2026-10-19
notice6cc1eca3752c8ad4ae4d5c0c…2026-09-04 04:29Revision 1current