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psx:substance/det/proposal/contraindication/ee1f8c75-3d3c-4dd1-bbc8-68180e9eecb2

proposal2026-04-26recordapproved

derived from · upstream

none recorded

feeds · downstream

Closure of psx:substance/det/proposal/contraindication/ee1f8c75-3d3c-4dd1-bbc8-68180e9eecb2: 0 upstream, 1 downstream.

psx:substance/det/proposal/contraindication/ee1f8c75-3d3c-4dd1-bbc8-68180e9eecb2
└─ derived_from  value/contraindication/63d8f9de-dd75-4c79-bf50-880e304c486f@1

indented by distance from this node, not by parentage

1Provenance card

the boundary, as counts

Sources

1711 with DOI

4 strong · 9 moderate · 4 weak

Compilations

12026-04-26T16:17:15.500Z

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

Decisions

42last ruled 2026-06-04

0 awaiting a ruling

Issued documents

62026-10-19T20:31:24.967Z

notice · info card · emergency

Searches

181 with no results

queries and counts on the build

Claims checked

6020 supported

20 supported · 40 not

Correspondence

0received

consent field ships in Phase 4

Edges

214

derivations recorded for this entity

Complete over 17 sources, 1 compilation, and 42 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/det/archive

2Build

one panel per compilation run

generation run 2026-04-26

44 min completedmodel pipeline-v5plan not recordedrun/b2904e59…

Selection

results seen83
selected by the model28
consumed as sources17

Verification

claims checked60
supported20
partially supported0
not supported0
inconclusive40
  • record
  • seen / partial
  • working

The model's own caveats

none raised on this run

Reproduce

inputs
17 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
18 searches — query, source, results, what was kept and why
18 searches for this run
#sourcequeryseenkeptrationale
1PubMedtryptamine sigma-1 receptor binding psychedelic93Establish sigma-1 receptor relevance for tryptamines; must note DET-specific data absent
2PubChemN,N-diethyltryptamine11Primary chemical identity confirmation
3ClinicalTrials.govdiethyltryptamine DET psychedelic11Only trial result - may not be DET-specific
4PubMedDET diethyltryptamine drug discrimination rat31Drug discrimination data relevant to hallucinogen potential
5OpenAlexN,N-diethyltryptamine psychedelic104High-citation review articles and primary pharmacology papers
6PubMedDET diethyltryptamine pharmacology receptor22Both directly test DET pharmacology
7Erowid/TIHKALTIHKAL entry #3 DET11Shulgin primary data on DET dosing and effects
8UNODCtryptamines international control Convention Psychotropic Substances11Definitive international scheduling status
9PubMedhallucinogen head twitch response tryptamine HTR mouse 5-HT2A62Cross-species predictive data for tryptamine hallucinogenicity
10PubMedserotonin toxicity serotonergic psychedelics SSRI MAOI11Drug interaction and serotonin toxicity risk for tryptamines
11WebSzara 1956 1957 diethyltryptamine history hallucinogen102Key historical papers establishing DET's first human use
12WebDET diethyltryptamine legal USA Canada Australia DEA analog103Legal status by jurisdiction
13Web/ErowidDET TIHKAL Shulgin legal status scheduling102Primary sources for dosing and legal status
14ClinicalTrials.govdiethyltryptamine DET10Confirms no active or completed DET-specific clinical trials
15ChemEuropeDET physical properties melting point SMILES CAS12Physical property data not returned by PubChem API
16PubMedtryptamine overdose death case poisoning toxicology61Confirms absence of DET-specific toxicology case reports; AMT noted for class context
17Multiple · absenceDET seed data verification00Data verification for generation agent
18WebDET oral bioavailability no MAOI required steric bulk MAO-A101Key pharmacokinetic distinction from DMT
60 claims by section — every cited sentence, checked against its source
safety18 · 7 ok
  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • Alpha-methyltryptamine (AMT), a structurally related tryptamine with distinct pharmacology (monoamine-oxidase inhibitor activity that DET lacks), caused at least one documented fatality in the United States in 2003, with postmortem blood levels of 2.0 mg/Lsupported

    First known AMT death in the US (Feb 2003, Miami-Dade). Postmortem blood AMT 2.0 mg/L… AMT described as antidepressant/stimulant/MAO inhibitor. pmid:16105268

  • tolerance to serotonergic psychedelics develops rapidly — effectively after a single dose — through 5-ht2a downregulation in the frontal cortexsupported

    Tolerance after single dose. DOI caused 5-HT2AR downregulation in frontal cortex. acschemneuro.2c00170

  • Cross-tolerance between serotonergic psychedelics is established; doi–lsd cross-tolerance has been confirmed in micesupported

    Cross-tolerance between DOI and LSD. acschemneuro.2c00170

  • These values are consistent with the class-level mechanistic data but have not been validated specifically for DET.supported

    Repeated DOI induces progressive decrease in HTR. Cross-tolerance between DOI and LSD. acschemneuro.2c00170

  • Drug discrimination and self-administration studies in rodents have consistently failed to demonstrate reinforcement with classical 5-HT₂A agonist psychedelics.supported

    Low abuse liability for DOM in rodents. jpet.111.179705

  • Malcolm evaluated serotonin-syndrome risk between serotonergic psychedelics and common psychiatric medications at the class level.supported

    Evaluates drug-drug interaction risks and serotonin toxicity between psychedelic serotonergic substances and SSRIs. s00213-021-05876-x

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • SSRIs present a dual risk: serotonin toxicity at the pharmacological level, and unpredictable modulation of the psychedelic experience — blunting or paradoxical intensification.supported

    Evaluates drug-drug interaction risks and serotonin toxicity between psychedelic serotonergic substances and SSRIs. s00213-021-05876-x

receptor-pharmacology14 · 2 ok
  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • The sigma-1-receptor is established as a target for dmt, which acts as an endogenous sigma-1 agonist and inhibits voltage-gated sodium channelssupported

    DMT bound to sigma-1 receptors and inhibited voltage-gated sodium channels. DMT is an endogenous sigma-1 receptor agonist. science.1166127

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • N,N-Dialkyltryptamines including DMT, dpt, mipt, and dipt act as substrates — not blockers — at the serotonin-transporter (SERT) and vmat2 (VMAT2), with high binding-to-uptake ratios supporting transporter substrate behavior rather than reuptake-inhibitorsupported

    High binding-to-uptake ratios indicate substrate (not blocker) behavior at both SERT and VMAT2. s00702-009-0308-8

pharmacology8 · 4 ok
  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • In PC12 cells stably expressing the rat 5-ht2a receptor, DET stimulates Gq-mediated phosphoinositide (PI) hydrolysis in a concentration-dependent mannersupported

    DET causes concentration-dependent phosphoinositide hydrolysis via 5-HT2A in PC12 cells. pmid:11900766

  • The Gq-coupled signaling pathway — rather than β-arrestin2 recruitment — is the determinant of psychedelic potential: Wallach et al. demonstrated in mice that a threshold level of 5-HT₂A-Gq activation is required to produce the head-twitch response (HTR), the primary animal model of hallucinogenic activity, whereas β-arrestin2 recruitment efficacy has no predictive value.supported

    5-HT2A-Gq (not beta-arrestin2) efficacy predicts psychedelic potential via head-twitch response magnitude in mice. s41467-023-44016-1

  • Repeated 5-HT₂A activation induces downregulation and tolerance, a mechanism shared across classical psychedelics and mediated by G-protein-coupled receptor desensitization and internalization rather than β-arrestin2-dependent pathways.supported

    DOI caused 5-HT2AR downregulation in frontal cortex. Tolerance mechanism independent of beta-arrestin-2. Cross-tolerance between DOI and LSD. acschemneuro.2c00170

  • Szára's early research identified 6-hydroxy-DET as a metabolite with minor psychoactive activity — in contrast to 6-hydroxy-DMT, which was found inactive. cyp2d6 mediates oxygenated metabolite formation for DMT in vitro, and this pathway may apply to DET, but no published DET-specific CYP enzyme mapping existssupported

    DMT rapidly metabolized by CYP2D6 via hydroxylation on the indole core. 00498254.2023.2278488

comparative-pharmacology6 · 1 ok
  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

  • Mouse head-twitch response (HTR) potency correlates strongly with human hallucinogenic potency across tryptamines and phenethylamines (r = 0.9448)supported

    Strong positive correlation (r=0.9448) between HTR potencies in mice and reported hallucinogenic potencies in humans (n=36). j.neuropharm.2019.107933

  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

neuroscience4 · 1 ok
  • Claim in neuroscience — inconclusiveinconclusiveworking →

  • Claim in neuroscience — inconclusiveinconclusiveworking →

  • Claim in neuroscience — inconclusiveinconclusiveworking →

  • Wallach et al. demonstrated that Gq efficacy at 5-HT₂A — not β-arrestin2 recruitment — is the molecular determinant of psychedelic-like behavioral responses in mice.supported

    5-HT2A-Gq (not beta-arrestin2) efficacy predicts psychedelic potential via head-twitch response magnitude in mice. s41467-023-44016-1

summary4 · 2 ok
  • Claim in summary — inconclusiveinconclusiveworking →

  • Claim in summary — inconclusiveinconclusiveworking →

  • DET acts as an agonist at the serotonin 5-ht2a receptor, stimulating Gq-mediated phosphoinositide hydrolysissupported

    DET causes concentration-dependent phosphoinositide hydrolysis via 5-HT2A in PC12 cells. pmid:11900766

  • No LD₅₀ data exist for any species, and no human fatalities attributable to DET have been reported — though this likely reflects low prevalence rather than established safety. tolerance develops rapidly through 5-HT₂A downregulation in the frontal cortex, a β-arrestin2-independent desensitization mechanism shared across classical psychedelicssupported

    DOI caused 5-HT2AR downregulation in frontal cortex. Tolerance mechanism independent of beta-arrestin-2. acschemneuro.2c00170

chemistry2 · 1 ok
  • Claim in chemistry — inconclusiveinconclusiveworking →

  • Structure-activity relationship studies within the hallucinogenic tryptamine series have established that the N,N-dialkyl substitution pattern is critical for serotonin 2A receptor agonist activity and psychedelic potential.supported

    Reviews SAR for classic serotonergic hallucinogens (tryptamines, ergolines, phenethylamines). 5-HT2A as principal target. Key structural features for each class. 7854_2017_475

history2 · 1 ok
  • Claim in history — inconclusiveinconclusiveworking →

  • DET's early clinical use occurred within the broader mid-twentieth-century era of psycholytic therapy, during which numerous tryptamine and lysergamide compounds were explored in European psychiatric settingssupported

    Comprehensive review of psycholytic therapy 1949-1970s, led by Hanscarl Leuner in Germany. Used at 30 European clinical centers. Various substances including tryptamines employed. fpsyt.2022.1020505

pharmacokinetic-detail2 · 1 ok
  • Claim in pharmacokinetic-detail — inconclusiveinconclusiveworking →

  • For the structural parent DMT, cyp2d6 mediates formation of oxygenated metabolites in vitro, but DET-specific CYP isoform mapping has not been published.supported

    DMT rapidly metabolized by CYP2D6 via hydroxylation on the indole core. 00498254.2023.2278488

3Sources

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

Sources
yearsourcetierstatusfeeds
2024Diethyltryptamine - WikipediaWikipedia contributorsurl:19fe2e0e158714cdweakconsumedcited only
2024Diethyltryptamine (DET) compound pagePubChemurl:6c16ef610c8684b2weakconsumedcited only
2023Identification of 5-HT2A receptor signaling pathways associated with psychedelic potentialWallach J, Cao AB, Calkins MM, Heim AJ, Lanham JK, et al. · Nature Communicationsdoi:10.1038/s41467-023-44016-1moderateconsumed2 sections
2023List of psychotropic substances under international control: TryptaminesUNODCurl:5c2644ab582b017dweakconsumedcited only
2023N,N-Dimethyltryptamine Forms Oxygenated Metabolites via CYP2D6 - An In Vitro InvestigationEckernäs E, Macan-Schönleben A, Andresen-Bergström M, Birgersson S, Hoffmann KJ, Ashton M · Xenobioticadoi:10.1080/00498254.2023.2278488strongconsumed2 sections
2022Lower-Dose Psycholytic Therapy - A Neglected ApproachPassie T, Guss J, Krähenmann R · Frontiers in Psychiatrydoi:10.3389/fpsyt.2022.1020505moderateconsumed1 section
2022Serotonin toxicity of serotonergic psychedelicsMalcolm B, Thomas K · Psychopharmacologydoi:10.1007/s00213-021-05876-xmoderateconsumed1 section
2022Tolerance and Cross-Tolerance among Psychedelic and Nonpsychedelic 5-HT2A Receptor Agonists in Micede la Fuente Revenga M, Jaster AM, McGinn J, Silva G, Saha S, Gonzalez-Maeso J · ACS Chemical Neurosciencedoi:10.1021/acschemneuro.2c00170moderateconsumed3 sections
2020Correlation between the potency of hallucinogens in the mouse head-twitch response assay and their behavioral and subjective effects in other speciesHalberstadt AL, Chatha M, Klein AK, Wallach J, Brandt SD · Neuropharmacologydoi:10.1016/j.neuropharm.2019.107933moderateconsumed1 section
2018Chemistry and Structure-Activity Relationships of Psychedelics.Nichols DE · Current Topics in Behavioral Neurosciencesdoi:10.1007/7854_2017_475strongconsumed1 section
2011Abuse liability profile of three substituted tryptaminesGatch MB, Forster MJ, Janowsky A, Eshleman AJ · Journal of Pharmacology and Experimental Therapeuticsdoi:10.1124/jpet.111.179705strongconsumed1 section
2009Dimethyltryptamine and other hallucinogenic tryptamines exhibit substrate behavior at the serotonin uptake transporter and the vesicle monoamine transporter.Cozzi NV, Gopalakrishnan A, Anderson LL, Feih JT, Shulgin AT, Daley PF, Ruoho AE · Journal of neural transmissiondoi:10.1007/s00702-009-0308-8moderateconsumed1 section
2009The hallucinogen N,N-dimethyltryptamine (DMT) is an endogenous sigma-1 receptor regulatorFontanilla D, Johannessen M, Hajipour AR, Cozzi NV, Jackson MB, Ruoho AE · Sciencedoi:10.1126/science.1166127moderateconsumed1 section
2009When the endogenous hallucinogenic trace amine N,N-dimethyltryptamine meets the sigma-1 receptorSu TP, Hayashi T, Vaupel DB · Science Signalingdoi:10.1126/scisignal.261pe12moderateconsumed1 section
2005Fatality due to acute alpha-methyltryptamine intoxication.Boland DM, Andollo W, Hime GW, Hearn WL · Journal of analytical toxicologypmid:16105268weakconsumed1 section
20025-HT2A Receptor-Stimulated Phosphoinositide Hydrolysis in the Stimulus Effects of HallucinogensRabin RA, Regina M, Doat M, Winter JC · Pharmacology, Biochemistry and Behaviorpmid:11900766strongconsumed4 sections
2000Effect of ring fluorination on the pharmacology of hallucinogenic tryptaminesBlair JB, et al. · Journal of Medicinal Chemistrypmid:11101361moderateconsumed2 sections
—Searched Multiple for "DET seed data verification" — no resultsabsenceno results—

4Docket

one filing per activity — decisions, correspondence, reports

  1. 0012026-04-26revisionRevision 1

    Initial LLM generation (v5 pipeline, wiki)

    psx:substance/det/version/1
  2. 0022026-06-04proposal40 value proposals approved together

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

    40 items in this filing

    • dose_tier · light
    • dose_tier · common
    • dose_tier · strong
    • dose_tier · heavy
    • timeline · oral · onset
    • timeline · oral · come_up
    • timeline · oral · peak
    • timeline · oral · resolution
    • timeline · oral · afterglow
    • timeline · smoked · onset
    • timeline · smoked · come_up
    • timeline · smoked · peak
    • timeline · smoked · resolution
    • timeline · smoked · afterglow
    • toxicity
    • dependence · full
    • withdrawal
    • tolerance
    • dosage · oral
    • dosage · smoked
    • dosage · intramuscular
    • duration · oral · onset
    • duration · oral · come_up
    • duration · oral · peak
    • duration · oral · offset
    • duration · oral · total
    • duration · oral · aftereffects
    • duration · smoked · onset
    • duration · smoked · peak
    • duration · smoked · total
    • duration · smoked · aftereffects
    • contraindication · psychiatric
    • contraindication · psychiatric
    • contraindication · psychiatric
    • contraindication · cardiovascular
    • contraindication · other
    • contraindication · other
    • contraindication · other
    • contraindication · pregnancy_breastfeeding
    psx:substance/det/proposal/dose_tier/620e466b-4d60-4a6f-936a-37cc4a1b2b86
  3. 0032026-06-04publicationPublication — backfill

5Issued documents

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

Issued documents
documentcontent hashissuedfrom versionsuperseded
emergencyc15c760aabf6f0fcf5b6fc6b…2026-10-19 20:31Revision 1current
info_card15f836a5be3973b016dc0233…2026-10-19 20:31Revision 1current
noticed94828eae489fd6b98f504db…2026-10-19 20:31Revision 1current
emergency3f0909c25c714d225b4bb3e3…2026-09-04 04:29Revision 1superseded2026-10-19
info_card6c92e0cf6c5a47ebbbe75bc2…2026-09-04 04:29Revision 1superseded2026-10-19
noticee685d6beb25623bd35a7f5bb…2026-09-04 04:29Revision 1superseded2026-10-19