Methcathinone Encyclopedic

Encyclopedic

Typical encyclopedia coverage. Cross-reference for important decisions.

3 corroborating sources

1 ROA with full dose ladder

duration data present

29 combo interactions documented

classified Research-chemical

Aliases: Mc, Cat, Kat, Jeff, M-kat

Summary dose.wiki PsychonautWiki

Methcathinone is a Schedule I controlled substance internationally and in the US. Illicit synthesis using potassium permanganate oxidation of ephedrine/pseudoephedrine has been associated with manganese-induced neurotoxicity resembling Parkinson's disease symptoms. Causes severe dehydration and increased perspiration requiring constant hydration to prevent rhabdomyolysis.

Dose Information dose.wiki PsychonautWiki

ROA	Light	Common	Strong	Heavy
Oral	50-100mg	100-200mg	200-300mg	300mg+

Light Common Strong Heavy

Sources

Oral

Dose ladder — dose.wiki, PsychonautWiki

Onset, Duration & After-effects dose.wiki PsychonautWiki

ROA	Onset	Comeup	Peak	Offset	After Effects	Total
Oral	10-30 min	30-60 min	1-2 hrs	1-2 hrs	2-6 hrs	2.67-5.5 hrs
Insufflated	5-10 min	15-30 min	1-2 hrs	1-2 hrs	2-6 hrs	2.33-4.67 hrs

Effect Profile

13 reports

Scores (0–10) curated from multiple sources:

Effect keyword matching from PsychonautWiki catalog
Weighted by importance: core (×3), major (×2), minor (×1)

Full methodology

Empathogen 5.6

Strong 6/10

Moderate stimulation and euphoria with mild empathy and sensory enhancement

Empathy / Social Openness ×3

empathy enhancement increased sociability

Euphoria / Mood Elevation ×2

physical euphoria cognitive euphoria

Stimulation ×1

stimulation wakefulness teeth grinding increased heart rate

Sensory Enhancement ×1

tactile enhancement increased libido

Stimulant 5.9

Strong 6/10

Strong focus with strong anxiety/jitters, moderate euphoria, mild stimulation

Stimulation / Energy ×3

stimulation wakefulness

Euphoria / Mood Lift ×2

physical euphoria cognitive euphoria motivation enhancement

Focus / Productivity ×2

focus enhancement analysis enhancement motivation enhancement thought acceleration

⚠ Anxiety / Jitters ×1

anxiety paranoia increased heart rate teeth grinding vasoconstriction

Based on reports from:

Erowid Experience Reports

Tolerance

Build-up develops rapidly, often within a single session; compulsive redosing common

Reset a few days for acute tolerance

Tolerance Decay

Full tolerance 2d Half tolerance 4d Baseline ~10d

Rapid tolerance is commonly reported with repeated use over days; rough decay to baseline over ~1–2 weeks is inferred from community reports and stimulant analogues. Data quality is limited and interindividual variability is high.

Cross-Tolerances

Amphetamines

Other cathinones

Effects Erowid

Aggregated from 13 single-substance Erowid experience reports; 4 Erowid reports where another drug was taken too are left out

Each bar shows the share of analyzed reports whose text mentions that effect — a mention is not always a first-hand experience (fear of an effect or something witnessed can count). Mentions saying the effect did not happen are left out; that check reads keywords, so it can miss some. The shaded band on a bar, and the small range after its number, is the 95% interval: where the share could plausibly be with other reports of the same kind. Fewer reports, wider band. Tap or hover any number for details. The second value is the Bluelight extractor's per-effect confidence; a dash means the row is Erowid-derived, which has no confidence measurement.

Too few reports for bars: these effects come from 13 single-substance Erowid reports, and a bar is drawn only from 20 reports or more. With fewer, a percentage cannot tell a common effect from a rare one. Counts are shown instead. Why 20?

Positive Effects 4

9 of 13 –

7 of 13 –

3 of 13 –

Adverse Effects 5

6 of 13 –

4 of 13 –

3 of 13 –

Also reported in combinations. In the 4 Methcathinone reports where another drug was taken too, 0 mention hospital, emergency services or an overdose, 1 a seizure and 0 psychosis (too few reports for percentages). In the 13 single-substance reports: 0, 2 and 3. These are not in the figures above: they cannot be put down to Methcathinone alone, and a mention is not always something that happened to the writer.

Combinations

Cross-Check Methcathinone with another substance

Community Trip Reports

Anecdotal first-person accounts from Reddit, Erowid, Bluelight, and Dose.wiki. Click a source to expand. Reports are harm-reduction context, not medical guidance. Tags summarise each author's own verdict — how reports are classified.

Erowid 8 reports 1 positive 2 neutral 5 cautionary visit

A Wonderful Breakthrough positive exp #66893

Tonight I may have taken the largest dose of Methcathinone I have ever taken. I must say that I am both surprised and pleased by what I am experiencing. I have taken this drug many times before and have never had the 'breakthrough' type of experience that I am having right now.

The Methcathinone Project cautionary exp #1792

I guess it all started when I heard about a new drug craze that had just been detected in Michigan by the local authorities. I'd say it was somewhere around the middle of 1993.

The Not-so-Friendly Kitten cautionary exp #39168

I hate the name of this drug. Impossible for me to pronounce or spell. Very appropriate. A friend of a distant cousin brewed up a batch of this stuff... about 2 grams of it... and left it under a rock near my mailbox. While shoveling snow, I stumbled upon it and decided to check it out.

Soaring Into the Ground neutral exp #19541

>Erowid Note: We aren't sure whether the substance described in the following report was methcathinone or cathinone. Last night, a good friend of mine came over. This was the same friend who initially introduced me to harder narcotics.

Useful neutral exp #33366

[Erowid Note: This report is marked as a methcathinone report, but readers should be aware there are aspects of it that suggest the identification is speculative.] When I first encountered methcathinone (erroneously called ice by the mentally imperfect oaf (read idiot) who had been using it for at least 6-8 months), I...

First Trial cautionary exp #38650

I was not planning on doing any stimulants that night but a chance came up to try Metacthinone. I'm always down to add another substance to my resume and in this case I was interested in the serotogenic action of this particular stimulant and how it compares to meth (the best stimulant period IMHO).

Robotic Concentration cautionary exp #50221

General Background: 21 year old male, once an extremely heavy user of psychedelics, particularly research chemicals. Stopped using drugs for a couple of years, after recovering from an opiate/benzodiazepine addiction catalyzed by HPPD/Psychosis (the result of reckless hallucinogen abuse).

Strange Properties cautionary exp #64285

The synthesis was initially a success, I had at least 1 gram of MCAT freebase. This is where things got a little iffy: In the absence of a suitable base for the substance, I hypothesized that I could slowly evaporate most of the water out, making a concentrated freebase solution.

Bluelight 2 threads 1 positive 1 neutral visit

Methcathinone Hydrochloride Experienced Cat Trip Report And Summary positive

Hey, hi. I don't often write on Bluelight, but I read a lot . To fill you in: I've eaten and snorted my way through an alphabet soup over the years, like many of you. And, of allll the various molecules, I tend to prefer stimulants that are euphoric.

Methcathinone Experiensed First Time After Half Yr Break neutral

back in the days it was legal and i used to take bunches of these capsules half gram each, 10+ capsules. those amounts prodused crack-like high, powerful as 2 E's and lasted good cuple hrs! it can be the thing but u need a lot and after 8 capseles dropped my heart dance next morning so i fuck it off of my life for thet...

Methcathinone's nerd page Pharmacology, chemical data, effect profiles, and more

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Helpful Links

📘 Experience Reports 📖 dose.wiki 📖 PsychonautWiki

Add missing routes to PsychonautWiki Journal

The PsychonautWiki Journal app already has Methcathinone, but its built-in entry only covers Oral. Here are the other routes we have data for. You can't edit a built-in substance, but you can add a Custom Unit for any of these routes to log it.

⬇ Download import file Import this file as custom substances and you get "Methcathinone (Substance Search)" with every route's full dose ladder and timeline, no typing. Works on iOS and Android (v15+); the format is confirmed by the app's developer. The manual values below work for older versions.

Duration (reference)

Methcathinone: routes the PsychonautWiki Journal app is missing
Source: SubstanceSearch (substancesearch.com)


Insufflated duration: onset 5-10m · come-up 15-30m · peak 1-2h · offset 1-2h · total 2.33-4.67h · after-effects 2-6h

Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.

Ranges are harm-reduction guidance, not a prescription.

Report an issue or suggest an edit

Spotted incorrect or dangerous information, have a correction, a new study, or a useful addition for Methcathinone? Let us know. Reports are reviewed by moderators — this is not posted publicly.

Methcathinone Encyclopedic Encyclopedic Typical encyclopedia coverage. Cross-reference for important decisions. 3 corroborating sources 1 ROA with full dose ladder duration data present 29 combo interactions documented classified Research-chemical