mCPP Encyclopedic

Encyclopedic

Typical encyclopedia coverage. Cross-reference for important decisions.

6 corroborating sources

1 ROA with full dose ladder

duration data present

toxicity data (PsychonautWiki)

classified Tentative

classified Research-chemical

Aliases: Cpp, 3-cpp, Meta-chlorophenylpiperazine

Summary dose.wiki Erowid TripSit PsychonautWiki

meta-Chlorophenylpiperazine (also known as mCPP) is a stimulant drug of the phenylpiperazine class. It was first synthesized as one in a series of potential novel antihistamines by Thomas H. Wicker Jr. in 1951 as part of his doctoral work at the University of Florida.

Dose Information dose.wiki PsychonautWiki

ROA	Light	Common	Strong	Heavy
Oral	20-50mg	50-120mg	120-150mg	150mg+

Light Common Strong Heavy

Sources

Oral

Dose ladder — dose.wiki, PsychonautWiki

Onset, Duration & After-effects dose.wiki PsychonautWiki

ROA	Onset	Comeup	Peak	Offset	Total
Oral	20-60 min	20-60 min	2-4 hrs	3-8 hrs	5.66-14 hrs

Effect Profile

3 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

Stimulant 4.1

Moderate 4/10

Moderate stimulation with strong anxiety/jitters, mild euphoria

Stimulation / Energy ×3

physical stimulation stimulation alertness enhancement

Euphoria / Mood Lift ×2

euphoria mood lift

Focus / Productivity ×2

⚠ Anxiety / Jitters ×1

anxiety teeth grinding vasoconstriction

Based on reports from:

Erowid Experience Reports PsychonautWiki mCPP

Tolerance

Build-up develops over days to weeks of regular use

Reset 3–7 days for acute tolerance; longer for full reset

Tolerance Decay

Full tolerance 1d Half tolerance 10d Baseline ~18d

Effects Erowid

Aggregated from 3 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 3 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 1

3 of 3 –

Adverse Effects 1

3 of 3 –

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

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 3 reports 2 neutral 1 cautionary visit

No Negative Effects, but Few Positives neutral exp #65676

A few weeks back I bought a couple of pills that were advertised by a friend as MDMA. I hadn't touched any in over 3 months and there was a large group of us going out so I jumped at the opportunity. I am a 21 year old male, weighing just over 10 stone.

Started Off Bad But Ended Great neutral exp #72601

T:0 mCPP down the hatch... bad taste... almost sour and bitter at the same time. Not bad if mixed with Gatorade. T:15 Light nausea onset, not unbearable but uncomfortable. Pupils beginning to dilate. Everything seems bright. T:30 Strong nausea, vomiting. There goes a good lunch.

Terrible, Terrible Upper cautionary exp #75395

[Erowid Note: A substance(s) in this report might be identified incorrectly. Erowid reviewers question the author's identification of the drug described. Although the report is included in the collection, the substance might be something other than the author believed it to be.] Took two orange transformers thinking th...

Bluelight 7 threads 3 positive 3 neutral 1 cautionary visit

Mcpp Meopp Nothing Like E For Me neutral

So I got all excited after reading some people describing mCPP + meOPP as a combination capable of producing an mdma type effect. I'm sorry to say that for me the experience contained nothing of what i look for in a good pill.

Mcpp 120mg Semi Exp Finally Understanding The True Character Of Mcpp positive

Having just moved back to Los Angeles after being significantly farther north in the boonies for the past six months, I decided to see one of my good friends, N, that I had not seen since I left. After reminiscing for a bit, we came to the topic of what we were going to do that night.

Mcpp And Meopp First Time The Complete Rundown positive

Everyone seems to be polarized at opposite ends of the spectrum on these drugs. Either you love them to the point of sounding like you're advertising for a legal high online store, or you absolutely loathe them to the point of calling the drugs dirty, poisonous stimulants.

Mcpp First Time First Extacy Experience Mcpp neutral

The first time i took 'extacy', it turned out to be mcPP, but im not complaining I finished work at the usual time of 5pm, went to the pub with my new mates from work.

Mcpp Inexperienced Way Too Much neutral

Substance: way to much mcpp Expierence: Second time I think Setting: At home. Gender: Male Age: 17? at the time 22:20 Swallowed a pill containing mCPP with some water to chase it down. The thing gives me a really bitter taste while it didn't even touch my tongue. Ew..Just the way good E should be.

Mcpp A Review Of Effects From 11 Users positive

I'll give everyone a brief run down of 10 friends of mine and myself that have tried it within the past two weeks. This is without bias and just the straight facts per what I saw, heard and felt.

Mcpp 300mg Experienced Overdose cautionary

McPP 'Overdose' - 300mg ------------------------------- Prologue I originally wanted to dose 100mg. I have 2 bottles of water-dissolved chemicals, each having different potencies: In my bottle of TFMPP, 15mls is one dose, but from my bottle of McPP, 5mls is one dose.

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

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Helpful Links

📘 Experience Reports 📖 dose.wiki 📖 PsychonautWiki

Import into PsychonautWiki Journal

The PsychonautWiki Journal app includes mCPP, but its built-in data can be thinner than ours. Importing this file adds a separate "mCPP (Substance Search)" custom substance with our dose ranges, durations and tolerance, so you can log against whichever you prefer.

⬇ Download import file Import this file as custom substances and you get "mCPP (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.

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 mCPP? Let us know. Reports are reviewed by moderators — this is not posted publicly.

mCPP Encyclopedic Encyclopedic Typical encyclopedia coverage. Cross-reference for important decisions. 6 corroborating sources 1 ROA with full dose ladder duration data present toxicity data (PsychonautWiki) classified Tentative classified Research-chemical