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1Provenance card

the boundary, as counts

Sources

2924 with DOI

2 strong · 17 moderate · 10 weak

Compilations

12026-04-21T00:52:21.919Z

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

Decisions

50last ruled 2026-10-02

0 awaiting a ruling

Issued documents

42026-10-02T12:19:10.073Z

notice · info card · emergency

Searches

181 with no results

queries and counts on the build

Claims checked

9369 supported

69 supported · 24 not

Correspondence

0received

consent field ships in Phase 4

Edges

307

derivations recorded for this entity

Complete over 29 sources, 1 compilation, and 50 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/3-mmc/archive

2Build

one panel per compilation run

generation run 2026-04-21

180,698 min completedmodel pipeline-v5plan not recordedrun/ecfc3b18…

Selection

results seen463
selected by the model36
consumed as sources29

Verification

claims checked93
supported59
partially supported10
not supported0
inconclusive24
  • record
  • seen / partial
  • working

The model's own caveats

  • sparse_evidence

Reproduce

inputs
29 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
1PubChem3-MMC11Primary chemical identity data for 3-MMC — confirms seed data formula/IUPAC name and provides missing InChIKey and MW
2PubMed3-MMC 3-methylmethcathinone pharmacology1515All 15 papers are directly relevant to 3-MMC pharmacology, safety, and clinical profile
3OpenAlex3-methylmethcathinone 3-MMC synthetic cathinone3454These foundational cathinone pharmacology papers provide class-level context for 3-MMC; will use selectively for mechanism of action where 3-MMC-specific data is absent
4WebSearch3-MMC 3-methylmethcathinone legal status scheduling US UK EU Australia Canada 2024102Jurisdictional legal status not well-covered in PubMed
5PubMed3-methylmethcathinone monoamine transporter dopamine serotonin binding affinity11Key pharmacology paper characterizing mephedrone analogs at monoamine transporters
6PubMedstructure-activity methcathinone analogs monoamine transporter11Provides key EC50 values for 3-MMC releasing potency at DAT (28 nM), NET (27 nM), SERT (268 nM)
7WebSearchWHO ECDD 3-MMC critical review 2022 pharmacology history synthesis first appearance101Critical WHO regulatory/pharmacological review document
8OpenAlex3-MMC metaphedrone legal scheduling legislation31Important systematic review of 3-MMC prevalence and risks specifically in Netherlands context
9PubMed · absence3-MMC pharmacokinetics plasma half-life Tmax bioavailability human00Gap noted - no standalone human PK study found
10WHO ECDD3-MMC pharmacology, history, legal status10WHO critical review - source data for regulatory/pharmacological assessment
11PMC/PubMed Central3-MMC pharmacological IC50 EC50 values DAT NET SERT11Primary quantitative pharmacological data for 3-MMC
12PubChem + Cayman Chemical3-MMC CAS number SMILES synthesis12Chemical identity verification for brief seed data
13WebSearch3-MMC metaphedrone monoamine transporter IC50 DAT NET SERT102Key pharmacological characterization data
14WebSearch3-MMC tramadol lethal interaction case report death serotonin syndrome published100Gap identified - requires human review flag
15EUDA/EMCDDA3-MMC risk assessment deaths seizures legal status13Official EU regulatory assessment with epidemiological data
16OpenAlex3-MMC abuse potential reward self-administration reinforcing330Gap confirmed - no rodent self-administration model data published for 3-MMC specifically
17WebSearch3-MMC LD50 animal study mouse rat toxic dose oral intravenous mg/kg100Gap confirmed for LD50 - needs flag in research output
18WebSearch3-MMC Australia Canada scheduling legal status102Legal status for remaining key jurisdictions
93 claims by section — every cited sentence, checked against its source
safety27 · 23 ok
  • Claim in safety — inconclusiveinconclusiveworking →

  • No specific antidote exists; management is supportive and extrapolated from cocaine/amphetamine toxidrome protocols.supported

    No specific antidote; management extrapolated from cocaine/amphetamines. sar.s37257

  • The first published fatal case involved combined intoxication with approximately 500 mg 3-MMC, 400 mg 5-APB, and 80 g alcohol: the clinical course included agitation, seizures, hypertension, tachycardia, and hyperthermia, progressing to bradycardia and acute cardiovascular collapse within approximately 4 hourssupported

    Patient administered ~500mg 3-MMC + 400mg 5-APB + 80g ethyl alcohol. Clinical manifestations: agitation, seizures, hypertension, tachycardia, hyperthermia, bradycardia. Death ~4h after drug use from acute cardiovascular collapse. j.forsciint.2014.10.016

  • A second case documented fatal 3-MMC poisoning in a 19-year-old female (blood concentration 800 ng/mL) without reported co-intoxicants.supported

    Fatal case of suicide poisoning with 3-MMC. Blood concentration 800 ng/ml. j.forsciint.2019.02.040

  • In Italy, a significant epidemiological correlation has been identified between synthetic cathinone availability (including 3-MMC) and sudden unexpected deaths in youth (R² = 0.918, p = 2.63 × 10⁻⁷), though causality cannot be established from ecological datasupported

    Exploratory correlation analysis of NPS availability (including 3-MMC) and sudden unexpected deaths/violence in youth in Italy/Europe. Strong correlations found (R²=0.918, p=2.63×10⁻⁷). s11739-025-04180-2

  • Dutch Poison Center data document a strong increase in NPS intoxications including 3-MMC among adolescents from 2014 to 2023.supported

    Increasing trend in adolescent psychoactive substance intoxications reported to Dutch Poisons Information Center, including 3-MMC NPS. j.drugpo.2025.104860

  • 3-MMC induces concentration-dependent hepatotoxicity in rat hepatocytes at human-relevant concentrations (24-hour exposure, 31 nM–10 mM)supported

    3-MMC induces hepatotoxicity via oxidative stress, apoptosis, and autophagy in rat hepatocytes... at human-relevant concentrations. s00204-019-02539-x

  • Inhibition of CYP2D6 and CYP2E1 reduced toxicity, indicating that metabolic activation through these enzymes generates the hepatotoxic speciessupported

    CYP2D6 and CYP2E1 are implicated in metabolism. s00204-019-02539-x

  • Chronic 3-MMC administration in rats reduced inhibitory synaptic transmission in the nucleus accumbens (decreased sIPSC amplitude) without affecting excitatory transmissionsupported

    Decreased sIPSC amplitude in NAc after chronic exposure. fnmol.2022.975820

  • Claim in safety — inconclusiveinconclusiveworking →

  • Claim in safety — inconclusiveinconclusiveworking →

  • The biphasic anxiety pattern observed in rats — anxiolytic effects at acute dosing (3 mg/kg), anxiogenic effects after 7 days of chronic dosing — suggests that repeated use may produce or exacerbate anxiety disorders.supported

    Acute 3 mg/kg produced anxiolytic effects; chronic 7-day dosing produced anxiety-like behavior. fnmol.2022.975820

  • A particularly concerning psychological risk is the compulsive redosing pattern documented across multiple contexts: recreational use, chemsex sessions, and clinical case reportssupported

    higher craving/redosing/dependence potential than 4-MMC. Increasing treatment-seeking for problematic 3-MMC use. j.drugpo.2025.104971

  • A particularly concerning psychological risk is the compulsive redosing pattern documented across multiple contexts: recreational use, chemsex sessions, and clinical case reportssupported

    Case report addressing addictive patterns of chemsex with 3-MMC. Discusses diagnostic criteria, predisposing factors, and treatment approaches for 3-MMC addiction. s13256-025-05492-9

  • The controlled trial did not assess tolerance development.supported

    assessed the impact of three escalating doses of 3-MMC (25, 50 and 100 mg) on vital signs, neurocognitive function, state of consciousness, appetite and drug desire, in a cross-over, placebo-controlled trial. s41386-024-02042-7

  • Animal models: Conditioned place preference established at 3 and 10 mg/kg in rats (not at 1 mg/kg); CPP magnitude at 10 mg/kg comparable to methamphetamine at 3 mg/kg; VTA c-Fos activation exceeding methamphetaminepartially supported

    3-MMC induced CPP at 3 or 10 mg/kg in rats... c-Fos activation in ACC, NAc, and VTA. fnmol.2022.975820

  • Clinical observation: Systematic review concluding 3-MMC produces "more craving, more frequent re-dosing, and more dependence than 4-MMC"; increasing treatment-seeking for 3-MMC dependence in the Netherlandssupported

    higher craving/redosing/dependence potential than 4-MMC. Increasing treatment-seeking for problematic 3-MMC use. j.drugpo.2025.104971

  • Case reports: Documented 3-MMC addiction in chemsex context with discussion of diagnostic criteria for 3-MMC use disorder; multiple reports of compulsive sessional use with inability to self-limit dosingsupported

    Case report addressing addictive patterns of chemsex with 3-MMC. Discusses diagnostic criteria, predisposing factors, and treatment approaches for 3-MMC addiction. s13256-025-05492-9

  • Case reports: Documented 3-MMC addiction in chemsex context with discussion of diagnostic criteria for 3-MMC use disorder; multiple reports of compulsive sessional use with inability to self-limit dosingpartially supported

    31-year-old male intoxicated with 3-MMC (177 ng/mL blood) and GHB (131 mg/L) during slamsex session. Review of 13 chemsex/slamsex intoxication cases from literature. j.forsciint.2021.110743

  • Claim in safety — inconclusiveinconclusiveworking →

  • The most dangerous documented combination involved 3-MMC with 5-(2-aminopropyl)benzofuran (5-APB) and alcohol: approximately 500 mg 3-MMC combined with 400 mg of the serotonin-releasing benzofuran 5-APB and 80 g alcohol produced fatal cardiovascular collapse within 4 hourssupported

    Patient administered ~500mg 3-MMC + 400mg 5-APB + 80g ethyl alcohol... Death ~4h after drug use from acute cardiovascular collapse. j.forsciint.2014.10.016

  • A non-fatal severe intoxication occurred during combined 3-MMC and GHB use in a chemsex context (blood 3-MMC 177 ng/mL, GHB 131 mg/L), presenting with severe impaired consciousnesssupported

    31-year-old male intoxicated with 3-MMC (177 ng/mL blood) and GHB (131 mg/L) during slamsex session. j.forsciint.2021.110743

  • Multiple chemsex case reports document 3-MMC combined with GHB/GBL, ketamine, and other substances; polydrug combinations substantially increase overdose risk through cardiovascular and CNS depression masking.supported

    Narrative review of clinical pharmacology of chemsex drugs including synthetic cathinones (3-MMC), GHB/GBL, ketamine, methamphetamine, MDMA, cocaine. Covers polydrug interactions, serotonin syndrome risk, and psychopathological outcomes. brainsci15050424

  • Alcohol was present in the first published fatal 3-MMC case alongside 5-APB, but the independent contribution of alcohol to the fatal outcome cannot be determined from a single polydrug case.supported

    Patient administered ~500mg 3-MMC + 400mg 5-APB + 80g ethyl alcohol. j.forsciint.2014.10.016

  • The involvement of CYP2D6 in 3-MMC metabolism raises theoretical interaction potential with potent CYP2D6 inhibitors (SSRIs including fluoxetine and paroxetine, bupropion, quinidine)supported

    CYP2D6 and CYP2E1 are implicated in metabolism. s00204-019-02539-x

  • The dose-dependent cardiovascular stimulation documented in the controlled trial — even at the modest doses of 25–100 mg — confirms direct cardiovascular stress that could precipitate acute coronary events, hypertensive crisis, or arrhythmia in predisposed individuals.supported

    assessed the impact of three escalating doses of 3-MMC (25, 50 and 100 mg) on vital signs, neurocognitive function... s41386-024-02042-7

  • Hepatic impairment: The documented hepatotoxicity via CYP2D6/CYP2E1-mediated metabolic activation suggests that individuals with compromised hepatic function face elevated risk of liver injurysupported

    3-MMC induces hepatotoxicity via oxidative stress, apoptosis, and autophagy in rat hepatocytes. CYP2D6 and CYP2E1 are implicated in metabolism. s00204-019-02539-x

pharmacology17 · 10 ok
  • Systematic structure-activity studies established the following transporter releasing potencies:supported

    SAR study of 15 methcathinone analogs at DAT, NET, SERT. 3-MMC (compound 3c): DAT EC50=28±6 nM, NET EC50=27±4 nM, SERT EC50=268±25 nM. acschemneuro.8b00524

  • The resulting DAT:SERT selectivity ratio of approximately 9.6 places 3-MMC firmly in the catecholamine-preferring rangesupported

    9.6-fold DAT:SERT selectivity. Acts primarily as releasing agent. acschemneuro.8b00524

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Blood concentrations from case reports provide limited pharmacokinetic reference points but no systematic dose-concentration relationship: 800 ng/mL in a fatal single-drug case, 1.6 µg/mL in a fatal polydrug case, 177 ng/mL in a non-fatal chemsex intoxication, and urine concentrations of 670 µg/mL in a methadone maintenance patientsupported

    Fatal case of suicide poisoning with 3-MMC. Blood concentration 800 ng/ml, vitreous humor 153 ng/ml, gastric contents 5.5 mg. j.forsciint.2019.02.040

  • Blood concentrations from case reports provide limited pharmacokinetic reference points but no systematic dose-concentration relationship: 800 ng/mL in a fatal single-drug case, 1.6 µg/mL in a fatal polydrug case, 177 ng/mL in a non-fatal chemsex intoxication, and urine concentrations of 670 µg/mL in a methadone maintenance patientsupported

    Post-mortem blood: 3-MMC 1.6 µg/mL, 5-APB 5.6 µg/mL. First report of blood concentrations in fatal 3-MMC intoxication. j.forsciint.2014.10.016

  • Blood concentrations from case reports provide limited pharmacokinetic reference points but no systematic dose-concentration relationship: 800 ng/mL in a fatal single-drug case, 1.6 µg/mL in a fatal polydrug case, 177 ng/mL in a non-fatal chemsex intoxication, and urine concentrations of 670 µg/mL in a methadone maintenance patientsupported

    31-year-old male intoxicated with 3-MMC (177 ng/mL blood) and GHB (131 mg/L) during slamsex session. j.forsciint.2021.110743

  • Blood concentrations from case reports provide limited pharmacokinetic reference points but no systematic dose-concentration relationship: 800 ng/mL in a fatal single-drug case, 1.6 µg/mL in a fatal polydrug case, 177 ng/mL in a non-fatal chemsex intoxication, and urine concentrations of 670 µg/mL in a methadone maintenance patientsupported

    3-MMC detected in urine of methadone maintenance patient at 670 µg/mL, along with pentedrone and methcathinone. bcpt.13270

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Three primary Phase I metabolites have been confirmed in human biological samples (plasma, urine, saliva, hair; n=31):supported

    Three biotransformation products identified: hydroxylated (C11H15NO2), keto-reduced (C11H17NO), and N-desmethyl (C10H13NO) derivatives. Confirmed in vivo in human plasma, urine, saliva and hair (n=31). j.jpba.2024.116335

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • A broader in vitro metabolic profiling study using human liver microsomes identified 25 Phase I metabolites of 3-MMC, with no sex-specific differences observed.supported

    25 metabolites identified. 7 sex-specific metabolites in male rat microsomes only; no sex-specific differences in human liver microsomes. s00216-023-04815-3

  • CYP2D6 and CYP2E1 have been implicated in 3-MMC metabolism through hepatotoxicity studies: inhibition of either enzyme significantly reduced 3-MMC-mediated cell death in rat hepatocytes, indicating both contribute to metabolic activation generating hepatotoxic species. The precise metabolic contribution of each CYP isoform to overall drug clearance in humans has not been determined — CYP involvement is inferred from toxicity modulation, not from direct pharmacokinetic studies.supported

    CYP2D6 and CYP2E1 are implicated in metabolism. Toxicity perceived at lysosome at lower concentrations, mitochondria at higher concentrations. s00204-019-02539-x

  • Related cathinone analogues (3-CMC, 4-CMC) share similar major metabolic pathways — keto reduction and N-demethylation — consistent with a class-level metabolic pattern for methcathinone derivatives.supported

    Metabolite profiling for methcathinone analogues (3-CMC, 4-CMC, 4-BMC). Major reactions: ketoreduction and N-demethylation. s12248-024-00940-8

summary11 · 11 ok
  • A triple monoamine releasing agent with approximately 10-fold selectivity for catecholamine transporters over serotonin (DAT EC50 28 nM, NET EC50 27 nM, SERT EC50 268 nM), 3-MMC produces a short-duration experience of 4–6 hours by the oral route, positioning it among the shorter-acting compounds in the synthetic cathinone class.partially supported

    3-MMC (compound 3c): DAT EC50=28±6 nM, NET EC50=27±4 nM, SERT EC50=268±25 nM. 9.6-fold DAT:SERT selectivity. Acts primarily as releasing agent. acschemneuro.8b00524

  • By 2021 it had become the most prevalent new psychoactive substance detected in European wastewater surveillancesupported

    Wastewater-based epidemiology in 12 European cities (2021). 3-MMC was the most common NPS found with highest mass loads (up to 24.8 mg/day/1000 inhabitants). j.watres.2024.121390

  • The first controlled human pharmacology studies were published in 2025, and 3-MMC is now internationally scheduled under the Convention on Psychotropic Substances (Schedule II, 2023).partially supported

    To date, there are no clinical studies that have evaluated the risk profile of 3-MMC in the recreational range of low to moderate doses. The current, first-in-human study (N=14)... s41386-024-02042-7

  • 3-MMC acts primarily through substrate-type releasing activity at the dopamine, norepinephrine, and serotonin transporters, with a DAT:SERT selectivity ratio of approximately 9.6supported

    9.6-fold DAT:SERT selectivity. Acts primarily as releasing agent. acschemneuro.8b00524

  • This catecholamine-dominant profile places it in the amphetamine-like cathinone subgroup rather than the MDMA-like or cocaine-like subgroupssupported

    Cathinone and methcathinone acted as preferential DA/NA uptake inhibitors. Classifies cathinones into three pharmacological groups. j.1476-5381.2012.02145.x

  • Unlike classical amphetamines, 3-MMC is essentially inactive at trace amine-associated receptor 1 (TAAR1; EC50 >10,000 nM at human TAAR1).supported

    Cathinone derivatives including mephedrone exhibited weak (EC50=5-10 µM) to negligible (EC50>10 µM) TAAR1 activity. Amphetamines showed much stronger TAAR1 activation. jpet.115.229765

  • At oral doses of 25–100 mg, the controlled clinical profile is characterized by dose-dependent psychostimulation — enhanced processing speed, cognitive flexibility, and psychomotor function — alongside moderate mood elevation, mild dissociative and psychotomimetic effects, and significant analgesiapartially supported

    assessed the impact of three escalating doses of 3-MMC (25, 50 and 100 mg) on vital signs, neurocognitive function, state of consciousness, appetite and drug desire, in a cross-over, placebo-controlled trial. s41386-024-02042-7

  • At oral doses of 25–100 mg, the controlled clinical profile is characterized by dose-dependent psychostimulation — enhanced processing speed, cognitive flexibility, and psychomotor function — alongside moderate mood elevation, mild dissociative and psychotomimetic effects, and significant analgesiapartially supported

    The present study assessed the analgesic effects of low to moderate doses (25, 50 and 100 mg) of 3-MMC in healthy volunteers (N=14) in a cross-over, placebo-controlled study. s00213-025-06798-8

  • Hepatotoxicity occurs through CYP2D6- and CYP2E1-mediated metabolic activation, producing oxidative stress, mitochondrial damage, and apoptosis at human-relevant concentrations in rat hepatocytessupported

    3-MMC induces hepatotoxicity via oxidative stress, apoptosis, and autophagy in rat hepatocytes. CYP2D6 and CYP2E1 are implicated in metabolism. Toxicity perceived at lysosome at lower concentrations, mitochondria at higher concentrations. s00204-019-02539-x

  • Dependence liability is high: conditioned place preference in rats at 10 mg/kg matches methamphetamine, and compulsive redosing is widely documented in clinical case reportspartially supported

    3-MMC induced CPP at 3 or 10 mg/kg in rats. fnmol.2022.975820

  • Dependence liability is high: conditioned place preference in rats at 10 mg/kg matches methamphetamine, and compulsive redosing is widely documented in clinical case reportspartially supported

    higher craving/redosing/dependence potential than 4-MMC. Increasing treatment-seeking for problematic 3-MMC use. j.drugpo.2025.104971

neuroscience9 · 8 ok
  • Claim in neuroscience — inconclusiveinconclusiveworking →

  • The analgesic effects demonstrated at 50–100 mg oral may involve both noradrenergic descending pain modulation (via α₂ receptor activation in the spinal cord) and serotonergic contributions to the endogenous pain control system, though the precise neural mechanism has not been investigated.supported

    The present study assessed the analgesic effects of low to moderate doses (25, 50 and 100 mg) of 3-MMC in healthy volunteers (N=14). s00213-025-06798-8

  • What is the cellular mechanism of 3-MMC analgesia? The analgesic efficacy at 50–100 mg is established, but the relative contributions of noradrenergic versus serotonergic versus dopaminergic pathways, and the relevant spinal versus supraspinal circuits, have not been delineated.supported

    The present study assessed the analgesic effects of low to moderate doses (25, 50 and 100 mg) of 3-MMC in healthy volunteers (N=14) in a cross-over, placebo-controlled study. s00213-025-06798-8

  • 3-MMC's potent DAT releasing activity (EC50 28 nM) directly potentiates dopaminergic transmission in the mesolimbic reward pathwaysupported

    DAT EC50=28±6 nM... Acts primarily as releasing agent. acschemneuro.8b00524

  • Chronic 3-MMC administration in rats selectively reduces inhibitory synaptic transmission in the NAc, manifest as decreased spontaneous inhibitory postsynaptic current (sIPSC) amplitude without changes in excitatory transmissionsupported

    Decreased sIPSC amplitude in NAc after chronic exposure. fnmol.2022.975820

  • The potent NET releasing activity (EC50 27 nM) drives the sympathomimetic effects observed clinically — tachycardia, hypertension, enhanced arousal, and the cognitive performance improvements documented in the controlled trialsupported

    assessed the impact of three escalating doses of 3-MMC (25, 50 and 100 mg) on vital signs, neurocognitive function, state of consciousness. s41386-024-02042-7

  • The controlled clinical data show dose-dependent increases in both drug "liking" and "wanting", consistent with incentive salience theorysupported

    assessed the impact of three escalating doses of 3-MMC (25, 50 and 100 mg) on... appetite and drug desire. s41386-024-02042-7

  • The documented compulsive redosing behavior supports this theoretical prediction.supported

    higher craving/redosing/dependence potential than 4-MMC. Increasing treatment-seeking for problematic 3-MMC use. j.drugpo.2025.104971

  • The biphasic anxiety pattern observed in rats — anxiolytic effects acutely, anxiogenic effects after 7 days of dosing — is consistent with the emergence of counteradaptive processes that oppose the acute drug effectsupported

    Acute 3 mg/kg produced anxiolytic effects; chronic 7-day dosing produced anxiety-like behavior. fnmol.2022.975820

history6 · 4 ok
  • Italy was among the earliest significant markets for 3-MMC: forensic laboratory analysis of seized NPS in 2013–2015 found that 3-MMC constituted 22% of all NPS seizuressupported

    In Italy, 35/162 (22%) of seized NPS samples (2013-2015) were 3-MMC crystals. j.forsciint.2016.01.037

  • Wastewater-based epidemiology across 12 European cities in 2021 confirmed 3-MMC as the most prevalent new psychoactive substance in circulation, with mass loads reaching 24.8 mg/day/1,000 inhabitants — exceeding all other monitored NPS.supported

    Wastewater-based epidemiology in 12 European cities (2021). 3-MMC was the most common NPS found with highest mass loads (up to 24.8 mg/day/1000 inhabitants). j.watres.2024.121390

  • The first controlled human pharmacology studies of 3-MMC were published in 2025 by Ramaekers and colleagues, examining dose-dependent safety, cognitive effects, and analgesic properties at 25, 50, and 100 mg oral in healthy volunteerssupported

    To date, there are no clinical studies that have evaluated the risk profile of 3-MMC... The current, first-in-human study (N=14) assessed the impact of three escalating doses of 3-MMC (25, 50 and 100 mg) on vital signs, neurocognitive function, state of consciousness... s41386-024-02042-7

  • The first controlled human pharmacology studies of 3-MMC were published in 2025 by Ramaekers and colleagues, examining dose-dependent safety, cognitive effects, and analgesic properties at 25, 50, and 100 mg oral in healthy volunteerssupported

    The present study assessed the analgesic effects of low to moderate doses (25, 50 and 100 mg) of 3-MMC in healthy volunteers (N=14) in a cross-over, placebo-controlled study. s00213-025-06798-8

  • Claim in history — inconclusiveinconclusiveworking →

  • Claim in history — inconclusiveinconclusiveworking →

pharmacokinetic-detail6 · 4 ok
  • Indirect timing data from the first-in-human clinical trial (N=14, oral doses of 25, 50, and 100 mg in a placebo-controlled crossover design) indicate:supported

    first-in-human study (N=14) assessed the impact of three escalating doses of 3-MMC (25, 50 and 100 mg) on vital signs, neurocognitive function, state of consciousness, appetite and drug desire, in a cross-over, placebo-controlled trial. s41386-024-02042-7

  • Claim in pharmacokinetic-detail — inconclusiveinconclusiveworking →

  • Claim in pharmacokinetic-detail — inconclusiveinconclusiveworking →

  • In vivo metabolic profiling (n=31 samples across four biomatrices) confirms three primary Phase I pathways: keto reduction (detected in 52% of samples), N-demethylation (42%), and hydroxylation (16%). In vitro human liver microsomal studies expand the metabolic map to 25 Phase I metabolites, with no sex-specific differences in metabolite formation.partially supported

    Three biotransformation products identified... Confirmed in vivo in human plasma, urine, saliva and hair (n=31). j.jpba.2024.116335

  • In vivo metabolic profiling (n=31 samples across four biomatrices) confirms three primary Phase I pathways: keto reduction (detected in 52% of samples), N-demethylation (42%), and hydroxylation (16%). In vitro human liver microsomal studies expand the metabolic map to 25 Phase I metabolites, with no sex-specific differences in metabolite formation.partially supported

    25 metabolites identified. 7 sex-specific metabolites in male rat microsomes only; no sex-specific differences in human liver microsomes. s00216-023-04815-3

  • CYP2D6 and CYP2E1 are implicated in the generation of hepatotoxic metabolites based on enzyme inhibition studies in rat hepatocytessupported

    CYP2D6 and CYP2E1 are implicated in metabolism. s00204-019-02539-x

receptor-pharmacology6 · 2 ok
  • The complete transporter interaction profile encompasses both releasing and reuptake inhibition mechanisms:supported

    3-MMC (compound 3c): DAT EC50=28±6 nM, NET EC50=27±4 nM, SERT EC50=268±25 nM. Acts primarily as releasing agent. acschemneuro.8b00524

  • The DAT:SERT releasing EC50 ratio of ~9.6 confirms preferential catecholamine engagementsupported

    9.6-fold DAT:SERT selectivity. acschemneuro.8b00524

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

comparative-pharmacology5 · 4 ok
  • A systematic review concluded that 3-MMC produces "more craving, more frequent re-dosing, and more dependence than 4-MMC," with treatment-seeking for 3-MMC dependence increasing in the Netherlands.supported

    higher craving/redosing/dependence potential than 4-MMC. Increasing treatment-seeking for problematic 3-MMC use. j.drugpo.2025.104971

  • Conditioned place preference studies in rats provide a direct comparison: 3-MMC at 10 mg/kg produces CPP magnitude comparable to methamphetamine at 3 mg/kgsupported

    3-MMC induced CPP at 3 or 10 mg/kg in rats. fnmol.2022.975820

  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

  • A key pharmacological distinction lies at TAAR1: methamphetamine is a potent TAAR1 agonist, whereas 3-MMC is essentially inactive (EC50 >10,000 nM at human TAAR1)supported

    Cathinone derivatives including mephedrone exhibited weak (EC50=5-10 µM) to negligible (EC50>10 µM) TAAR1 activity. Amphetamines showed much stronger TAAR1 activation. jpet.115.229765

  • MDMA's DAT:SERT ratio is approximately 0.1–0.3 (strongly serotonin-preferring), whereas 3-MMC's ratio of ~9.6 favors catecholamines by nearly an order of magnitudesupported

    9.6-fold DAT:SERT selectivity. Acts primarily as releasing agent. acschemneuro.8b00524

effects-overview3 · 0 ok
  • Claim in effects-overview — inconclusiveinconclusiveworking →

  • Claim in effects-overview — inconclusiveinconclusiveworking →

  • Claim in effects-overview — inconclusiveinconclusiveworking →

clinical-evidence2 · 2 ok
  • The first-in-human study employed a randomized, double-blind, placebo-controlled, 4-way crossover design in 14 healthy volunteers receiving 25, 50, and 100 mg oral doses.supported

    first-in-human study (N=14) assessed the impact of three escalating doses of 3-MMC (25, 50 and 100 mg)... in a cross-over, placebo-controlled trial. s41386-024-02042-7

  • A companion study using the same design examined analgesic effects:supported

    The present study assessed the analgesic effects of low to moderate doses (25, 50 and 100 mg) of 3-MMC in healthy volunteers (N=14) in a cross-over, placebo-controlled study. s00213-025-06798-8

chemistry1 · 1 ok
  • This single-atom regiochemical difference substantially alters the pharmacological profile: 3-MMC exhibits approximately 10-fold catecholamine selectivity over serotonin, whereas mephedrone is a less selective monoamine releaser.supported

    SAR study of 15 methcathinone analogs... 9.6-fold DAT:SERT selectivity. Acts primarily as releasing agent. acschemneuro.8b00524

3Sources

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

Sources
yearsourcetierstatusfeeds
2026Are new psychoactive substances driving sudden unexpected deaths and violence among youth in the European countries?Tirelli U, Chirumbolo S · Internal and emergency medicinedoi:10.1007/s11739-025-04180-2moderateconsumed1 section
2025Appearance of 2-MMC and 3-MMC on the illicit drug market in the Netherlands: A systematic narrative review of the prevalence and risksvan Amsterdam J, Nabben T, van den Brink W · The International journal on drug policydoi:10.1016/j.drugpo.2025.104971moderateconsumed5 sections
2025Drugs Used in 'Chemsex'/Sexualized Drug Behaviour—Overview of the Related Clinical Psychopharmacological IssuesSchifano F, Bonaccorso S, Arillotta D, Guirguis A, Corkery J · Brain Sciencesdoi:10.3390/brainsci15050424moderateconsumed1 section
2025Integrative treatment approach to problematic sexualized drug use (Chemsex) of 3-methylmethcathinone: a case reportKhatcherian E, Arango-Arroyave S, Zullino D, Achab S · Journal of medical case reportsdoi:10.1186/s13256-025-05492-9weakconsumed1 section
2025Low to moderate doses of 3-methylmethcathinone (3-MMC) produce analgesic effects in healthy volunteers: a proof of principle study with a designer drugRamaekers JG, Reckweg JT, Mason NL, Kuypers KP, Toennes SW, Theunissen EL · Psychopharmacologydoi:10.1007/s00213-025-06798-8strongconsumed6 sections
2025Safety and cognitive pharmacodynamics following dose escalations with 3-methylmethcathinone (3-MMC): a first in human, designer drug studyRamaekers JG, Reckweg JT, Mason NL, Kuypers KPC, Toennes SW, Theunissen EL · Neuropsychopharmacologydoi:10.1038/s41386-024-02042-7strongconsumed9 sections
2025Strong increase in the number of intoxications involving psychoactive drugs among adolescents reported to the Dutch Poisons Information Center from 2014-2023Thoonen IM, Rietjens SJ, Koppen A, de Lange DW, Nugteren-van Lonkhuyzen JJ · The International journal on drug policydoi:10.1016/j.drugpo.2025.104860moderateconsumed1 section
20243-CMC, 4-CMC, and 4-BMC Human Metabolic Profiling: New Major Pathways to Document Consumption of Methcathinone Analogues?Berardinelli D, Taoussi O, Daziani G, Tavoletta F, Ricci G, Tronconi LP, Adamowicz P, Busardò FP, Carlier J · The AAPS journaldoi:10.1208/s12248-024-00940-8moderateconsumed1 section
20243-Methylmethcathinone (hydrochloride) Product SheetCayman Chemicalurl:f6f895f6124f4cbbweakconsumedcited only
2024In vitro biotransformation of 3-methylmethcathinone (3-MMC) through incubation with human liver microsomes and cytosol and application to in vivo samplesVan Wichelen N, Estévez-Danta A, Belova L, den Ouden F, Verougstraete N, Roggeman M, Boogaerts T, Quireyns M, Robeyns R, De Brabanter N, Quintana JB, Rodil R, van Nuijs ALN, Covaci A, Gys C · Journal of pharmaceutical and biomedical analysisdoi:10.1016/j.jpba.2024.116335moderateconsumed2 sections
2024Influent wastewater analysis to investigate emerging trends of new psychoactive substances use in EuropeSalgueiro-Gonzalez N, Béen F, Bijlsma L, Boogaerts T, Covaci A, et al. · Water researchdoi:10.1016/j.watres.2024.121390moderateconsumed2 sections
2024Metaphedrone (3-Methylmethcathinone): Pharmacological, Clinical, and Toxicological ProfileKelecević I, Vejnović AM, Javorac J, Gvozdenović N, Janjić N, Mijatović Jovin V · Medicina (Kaunas, Lithuania)doi:10.3390/medicina60030466moderateconsumed4 sections
2023In vitro metabolism of cathinone positional isomers: does sex matter?Che P, Davidson JT, Still K, Kool J, Köhler I · Analytical and bioanalytical chemistrydoi:10.1007/s00216-023-04815-3moderateconsumed2 sections
2023Specific Listing for Three Currently Controlled Schedule I Substances (Federal Register 2023-27292)US DEA · Federal Registerurl:9079eb74bcecddc3weakconsumedcited only
2022Critical review report: 3-Methylmethcathinone (3-MMC)WHO Expert Committee on Drug Dependence (ECDD) · WHO 45th ECDD Meetingurl:93a77dccee18b493weakconsumedcited only
2022Effects of 3-methylmethcathinone on conditioned place preference and anxiety-like behavior: Comparison with methamphetamineChen Y, Zhang L, Ding Z, Wu X, Wang G, Shi J · Frontiers in molecular neurosciencedoi:10.3389/fnmol.2022.975820moderateconsumed4 sections
2022Report on the risk assessment of 2-(methylamino)-1-(3-methylphenyl)propan-1-one (3-methylmethcathinone, 3-MMC)EMCDDA · EMCDDA/EUDA Publicationsurl:2d71609e3ca44ecfweakconsumedcited only
2021Chemsex/slamsex-related intoxications: A case report involving gamma-hydroxybutyrate (GHB) and 3-methylmethcathinone (3-MMC) and a review of the literatureDrevin G, Rossi LH, Férec S, Briet M, Abbara C · Forensic science internationaldoi:10.1016/j.forsciint.2021.110743weakconsumed2 sections
2021EMCDDA initial report on the new psychoactive substance 2-(methylamino)-1-(3-methylphenyl)propan-1-one (3-methylmethcathinone, 3-MMC)EMCDDA · EMCDDA/EUDA Publicationsurl:82438d306ce141acweakconsumedcited only
2019A fatal case of poisoning of a 19-year-old after taking 3-MMCMargasińska-Olejak J, Celińska R, Fischer A, Stojko J · Forensic science internationaldoi:10.1016/j.forsciint.2019.02.040weakconsumed2 sections
2019Detection of legal highs in the urine of methadone-treated patient by LC-MSLabuz K, Adamowicz P, Kała M, Pyrc K, Reszke E, Mielczarek P, Silberring J, Smoluch M · Basic & clinical pharmacology & toxicologydoi:10.1111/bcpt.13270weakconsumed1 section
2019Systematic Structure-Activity Studies on Selected 2-, 3-, and 4-Monosubstituted Synthetic Methcathinone Analogs as Monoamine Transporter Releasing AgentsWalther D, Shalabi AR, Baumann MH, Glennon RA · ACS chemical neurosciencedoi:10.1021/acschemneuro.8b00524moderateconsumed6 sections
2019The new psychoactive substance 3-methylmethcathinone (3-MMC or metaphedrone) induces oxidative stress, apoptosis, and autophagy in primary rat hepatocytes at human-relevant concentrationsDias da Silva D, Ferreira B, Roque Bravo R, Rebelo R, Duarte de Almeida T, Valente MJ, Silva JP, Carvalho F, Bastos ML, Carmo H · Archives of toxicologydoi:10.1007/s00204-019-02539-xmoderateconsumed4 sections
2018Pharmacological profile of mephedrone analogs and related new psychoactive substancesLuethi D, Kolaczynska KE, Docci L, Krähenbühl S, Hoener MC, Liechti ME · Neuropharmacologydoi:10.1016/j.neuropharm.2017.07.026moderateconsumed2 sections
2016A snapshot on NPS in Italy: Distribution of drugs in seized materials analysed in an Italian forensic laboratory in the period 2013-2015Odoardi S, Romolo FS, Strano-Rossi S · Forensic science internationaldoi:10.1016/j.forsciint.2016.01.037moderateconsumed1 section
2016In Vitro Characterization of Psychoactive Substances at Rat, Mouse, and Human Trace Amine-Associated Receptor 1Simmler LD, Buchy D, Chaboz S, Hoener MC, Liechti ME · The Journal of pharmacology and experimental therapeuticsdoi:10.1124/jpet.115.229765moderateconsumed3 sections
2014Emerging drugs of abuse: current perspectives on substituted cathinonesDebruyne D, Loilier M, Cesbron A, Le Boisselier R, Bourgine J · Substance Abuse and Rehabilitationdoi:10.2147/sar.s37257moderateconsumed2 sections
2014Fatal intoxication with 3-methyl-N-methylcathinone (3-MMC) and 5-(2-aminopropyl)benzofuran (5-APB)Adamowicz P, Zuba D, Byrska B · Forensic science internationaldoi:10.1016/j.forsciint.2014.10.016weakconsumed2 sections
2012Pharmacological characterization of designer cathinones in vitroSimmler LD, Buser TA, Donzelli M, et al. · British Journal of Pharmacologydoi:10.1111/j.1476-5381.2012.02145.xmoderateconsumed1 section
—Searched PubMed for "3-MMC pharmacokinetics plasma half-life Tmax bioavailability human" — no resultsabsenceno results—

4Docket

one filing per activity — decisions, correspondence, reports

  1. 0012026-04-21revisionRevision 1

    Initial LLM generation (v5 pipeline, wiki)

    psx:substance/3-mmc/version/1
  2. 0022026-06-04proposal44 value proposals approved together

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

    44 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 · plateau
    • timeline · oral · resolution
    • timeline · oral · afterglow
    • timeline · insufflated · onset
    • timeline · insufflated · come_up
    • timeline · insufflated · peak
    • timeline · insufflated · plateau
    • timeline · insufflated · resolution
    • timeline · insufflated · afterglow
    • toxicity
    • dependence · full
    • withdrawal
    • tolerance
    • dosage · oral
    • dosage · insufflated
    • duration · oral · onset
    • duration · oral · come_up
    • duration · oral · peak
    • duration · oral · offset
    • duration · oral · total
    • duration · oral · aftereffects
    • duration · insufflated · onset
    • duration · insufflated · come_up
    • duration · insufflated · peak
    • duration · insufflated · offset
    • duration · insufflated · total
    • duration · insufflated · aftereffects
    • contraindication · cardiovascular
    • contraindication · cardiovascular
    • contraindication · cardiovascular
    • contraindication · hepatic
    • contraindication · psychiatric
    • contraindication · psychiatric
    • contraindication · pregnancy_breastfeeding
    • contraindication · other
    • contraindication · other
    psx:substance/3-mmc/proposal/dose_tier/6beff1d2-4fdd-4f58-bf85-8a84b3c71e0b
  3. 0032026-06-04publicationPublication — backfill
  4. 0042026-10-02rulingRuling — psx:substance/3-mmc/proposal/article_section_proposals/523ac546-e6ef-42a3-bb77-91d36c2e6040Unity
  5. 0052026-10-02rulingRuling — psx:substance/3-mmc/proposal/article_section_proposals/acb984b4-b8ea-4a1a-a2c3-daa5b9b11993Unity
  6. 0062026-10-02revisionr1.a1

    no edit summary recorded

    psx:substance/3-mmc/version/2
  7. 0072026-10-02publicationPublication — publish

5Issued documents

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

Issued documents
documentcontent hashissuedfrom versionsuperseded
info_card878dcb738cd8291a3b76439d…2026-10-02 12:19Revision 2current
emergency47cf1475db8db7f236c6a01a…2026-09-04 04:27Revision 1current
info_card6becef404f3c143eab09f031…2026-09-04 04:27Revision 1superseded2026-10-02
noticeee9c94337a3de0b3f3583a16…2026-09-04 04:27Revision 1current