Mephedrone
4-methylmethcathinone
1Provenance card
the boundary, as counts
Sources
4137 with DOI
4 strong · 31 moderate · 6 weak
Compilations
12026-04-20T23:32:24.316Z
pipeline-v5 · prompt hash not recorded — run predates 2026-09
Decisions
78last ruled 2026-06-04
0 awaiting a ruling
Issued documents
42026-10-19T20:32:45.725Z
notice · info card · emergency
Searches
210 with no results
queries and counts on the build
Claims checked
1234 supported
4 supported · 119 not
Correspondence
0received
consent field ships in Phase 4
Edges
365
derivations recorded for this entity
Complete over 41 sources, 1 compilation, and 78 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/mephedrone/archive
Timeline
what happened, newest first — claims, searches and artifacts stay inside Build
- 2026-10-19issueIssued info_card
- 2026-09-24srcDose-Response Pharmacological Study of Mephedrone and Its Metabolites: Pharmacokinetics, Serotoninergic Effects, and Impact of CYP2D6 Genetic Variation
- 2026-09-24srcIn vitro metabolism studies on mephedrone and analysis of forensic cases
- 2026-09-24srcNeuropharmacology of Synthetic Cathinones
- 2026-09-24srcNeurotoxicology of Synthetic Cathinone Analogs
- 2026-09-24srcDesigner drugs: mechanism of action and adverse effects
- 2026-09-24srcMephedrone (4-methylmethcathinone; 'meow meow'): chemical, pharmacological and clinical issues
- 2026-09-24srcAbuse-related and abuse-limiting effects of methcathinone and the synthetic bath salts cathinone analogs MDPV, methylone and mephedrone on intracranial self-stimulation in rats
- 2026-09-24srcRecreational use of mephedrone (4-methylmethcathinone, 4-MMC) with associated sympathomimetic toxicity
- 2026-09-24srcChanges in ambient temperature differentially alter the thermoregulatory, cardiac and locomotor stimulant effects of 4-methylmethcathinone (mephedrone)
- 2026-09-24srcSelf-reported prevalence of dependence of MDMA compared to cocaine, mephedrone and ketamine among a sample of recreational poly-drug users
- 2026-09-24srcA 3-year review of new psychoactive substances in casework
- 2026-09-24srcChemsex-related deaths in the United Kingdom (2017-2022): A review of the Forensic Toxicology data
- 2026-09-24srcBath salts intoxication: a case series
- 2026-09-24srcPolytox synthetic cathinone abuse: role for organic cation transporter 3
- 2026-09-24srcMephedrone induces partial release at human dopamine transporters but full release at human serotonin transporters
- 2026-09-24srcLong-term cognitive and neurochemical effects of bath salt designer drugs methylone and mephedrone
- 2026-09-24srcSynthetic psychoactive cathinones: hypothermia and reduced lethality compared to methamphetamine and MDMA
- 2026-09-24srcMephedrone, a new designer drug of abuse, produces acute hemodynamic effects in the rat
- 2026-09-24srcStereoselective Differences between the Reinforcing and Motivational Effects of Cathinone-Derived 4-Methylmethcathinone (Mephedrone) in Self-Administering Rats
- 2026-09-24srcThe designer methcathinone analogs, mephedrone and methylone, are substrates for monoamine transporters in brain tissue
- 2026-09-24srcHuman Pharmacology of Mephedrone in Comparison with MDMA
- 2026-09-24srcManganese-enhanced magnetic resonance imaging reveals differential long-term neuroadaptation after methamphetamine and mephedrone
- 2026-09-24srcPharmacokinetics of Mephedrone and Its Metabolites in Whole Blood and Plasma after Controlled Intranasal Administration to Healthy Human Volunteers
- 2026-09-24srcGC-MS Quantification Method for Mephedrone in Plasma and Urine: Application to Human Pharmacokinetics
- 2026-09-24srcMephedrone (4-methylmethcathinone) supports intravenous self-administration in Sprague-Dawley and Wistar rats
- 2026-09-24srcMephedrone: use, subjective effects and health risks
- 2026-09-24srcMephedrone, compared with MDMA (ecstasy) and amphetamine, rapidly increases both dopamine and 5-HT levels in nucleus accumbens of awake rats
- 2026-09-24srcComparative neuropharmacology of three psychostimulant cathinone derivatives: butylone, mephedrone and methylone
- 2026-09-24srcPharmacological characterization of designer cathinones in vitro
- 2026-09-24srcDifferential effects of cathinone compounds and MDMA on body temperature in the rat, and pharmacological characterization of mephedrone-induced hypothermia
- 2026-09-24src4-Methylmethcathinone (mephedrone): neuropharmacological effects of a designer stimulant of abuse
- 2026-09-24srcNeurochemical and Cardiovascular Effects of 4-Chloro Ring-Substituted Synthetic Cathinones in Rats
- 2026-09-24srcThe serotonin syndrome as a result of mephedrone toxicity
- 2026-09-24srcPharmacokinetics of Mephedrone and Its Metabolites in Human by LC-MS/MS
- 2026-09-24srcEffect of ambient temperature on the thermoregulatory and locomotor stimulant effects of 4-methylmethcathinone in Wistar and Sprague-Dawley rats
- 2026-09-24srcMephedrone and Alcohol Interactions in Humans
- 2026-09-24srcAcute Pharmacological Effects of Oral and Intranasal Mephedrone: An Observational Study in Humans
- 2026-09-24srcMultiple-drug toxicity caused by the coadministration of 4-methylmethcathinone (mephedrone) and heroin
- 2026-09-24srcMephedrone related fatalities: a review
- 2026-09-24srcMephedrone Legal Status by Jurisdiction (Erowid)
- 2026-09-24srcSMILES and physical properties of mephedrone (CID 45266826)
- 2026-09-04issueIssued emergency
- 2026-09-04issueIssued info_card
- 2026-09-04issueIssued notice
- 2026-06-04proposal42 value proposals approved togetherone review action inferred from a shared reviewer and instant — the graph records one activity per proposal
- 2026-06-04publicationPublication — backfill
- 2026-04-21proposalduration · insufflated · aftereffects
- 2026-04-21proposalduration · insufflated · total
- 2026-04-21proposalduration · insufflated · offset
- 2026-04-21proposalduration · insufflated · peak
- 2026-04-21proposalduration · insufflated · come_up
- 2026-04-21proposalduration · insufflated · onset
- 2026-04-21proposalduration · oral · aftereffects
- 2026-04-21proposalduration · oral · total
- 2026-04-21proposalduration · oral · offset
- 2026-04-21proposalduration · oral · peak
- 2026-04-21proposalduration · oral · come_up
- 2026-04-21proposalduration · oral · onset
- 2026-04-21proposaldosage · insufflated
- 2026-04-21proposaldosage · oral
- 2026-04-21proposaltolerance
- 2026-04-21proposalwithdrawal
- 2026-04-21proposaldependence · full
- 2026-04-21proposaltoxicity
- 2026-04-21proposaltimeline · insufflated · afterglow
- 2026-04-21proposaltimeline · insufflated · resolution
- 2026-04-21proposaltimeline · insufflated · peak
- 2026-04-21proposaltimeline · insufflated · come_up
- 2026-04-21proposaltimeline · insufflated · onset
- 2026-04-21proposaltimeline · oral · afterglow
- 2026-04-21proposaltimeline · oral · resolution
- 2026-04-21proposaltimeline · oral · plateau
- 2026-04-21proposaltimeline · oral · peak
- 2026-04-21proposaltimeline · oral · come_up
- 2026-04-21proposaltimeline · oral · onset
- 2026-04-21proposaldose_tier · heavy
- 2026-04-21proposaldose_tier · strong
- 2026-04-21proposaldose_tier · common
- 2026-04-21proposaldose_tier · light
- 2026-04-21proposaldose_tier · threshold
- 2026-04-20revisionRevision 1
- 2026-04-20genGeneration — pipeline-v5pipeline-v5
- 2026-04-20rungeneration run
The same entries, as forms: six forms.