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    Disclaimer
    ๐Ÿงช This is a research chemical with limited data on its long-term health effects, toxicity profile, and safe dosage ranges.

    PCE Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 4 corroborating sources
    • 3 ROAs with full dose ladders
    • duration data present
    • 18 combo interactions documented
    • toxicity data (PsychonautWiki)
    • classified Tentative
    • classified Research-chemical

    Aliases: Ci-400, Eticyclidine, Cyclohexamine

    Summary dose.wiki TripSit PsychonautWiki

    PCE is a potent dissociative that causes psychosis and mania at significantly higher rates than other dissociatives. Users should avoid taking the drug multiple days in a row or in high doses. Volumetric liquid dosing is strongly recommended due to the drug's extreme potency, as most standard milligram scales cannot accurately weigh doses below 10-15 mg.

    Dose Information dose.wiki TripSit PsychonautWiki

    ROA Light Common Strong Heavy
    Oral 3-5mg 5-10mg 10-15mg 15mg+
    Insufflated 2-4mg 4-8mg 8-15mg 15mg+
    Smoked 2-4mg 4-8mg 8-12mg 12mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects dose.wiki TripSit PsychonautWiki

    ROA Onset Comeup Peak Offset After Effects Total
    Oral 30-90 min 30-60 min 2-3 hrs 1-2 hrs 4-48 hrs 2-5 hrs
    Insufflated 19-60 min 30-45 min 2-3 hrs 1-2 hrs 4-48 hrs 2-5 hrs
    Smoked <1-2 min 30-60 min - 1-2 hrs - 2-5 hrs

    Effect Profile

    3 reports

    Scores (1–10) curated from multiple sources:

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

    Full methodology

    Dissociative 6.6
    Strong+ 7/10

    Strong dissociative depth, mania, motor impairment, and insight

    Dissociative Depth ×3
    10
    consciousness disconnection depersonalization derealization physical disconnection visual disconnection spatial disorientation +1 more
    Mania / Compulsion ×1
    10
    mania compulsive redosing thought acceleration disinhibition stimulation
    Insight / Novel Thought ×2
    8
    conceptual thinking introspection creativity enhancement immersion enhancement
    Motor / Sensory Impairment ×1
    10
    motor control loss physical disconnection tactile suppression numbness spatial disorientation visual disconnection

    Import into PsychonautWiki Journal

    The PsychonautWiki Journal app includes PCE, but its built-in data can be thinner than ours. Importing this file adds a separate "PCE (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 "PCE (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.

    Tolerance

    Build-up develops with repeated use over days to weeks
    Reset 2โ€“4 weeks for noticeable reduction

    Tolerance Decay

    Full tolerance 1d Half tolerance 21d Baseline ~28d

    Effects Erowid

    Aggregated from 3 Erowid experience reports

    Positive Effects 2

    Empathy 100.0% 70%
    Music Enhancement 100.0% 70%

    Adverse Effects 1

    Anxiety 100.0% 70%

    Combinations TripSit

    Cross-Check PCE with another substance

    Community Trip Reports

    Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. 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
    Bioassay: Eight Human Trials With Eticyclidine neutral exp #116855

    **Background information** - gender: male - age: 24 - weight: 80 kg - setting: at home - set: feeling great today - tolerance: none, I use dissociatives approx. once or twice a month (I made an exception for this titration and used a little more frequently than usual).

    Psychestim
    Really Difficult to Describe neutral exp #112776

    I t's very similar to PCP. I usually synthesize my drugs myself, can't get the precoursers for PCP, but I can easily get them for PCE, so I thought "close enough" and went with that.

    theAngryLittleBunny
    The Weirdest and Maybe Worst Addiction I Had cautionary exp #114164

    The addiction to dissociative drugs is very strange. I've tried many drugs before PCE, which are Mephedrone, Methcathinone, Methamphetamine, benzos and some barbiturates, tramadol and probably a few others.

    theAngryLittleBunny · 2 - 50 mg oral
    Bluelight 3 threads 3 neutral visit
    3 Me Pce 15 Mg Intranasal Experienced The Electric Fog neutral

    Age: 26 Weight: 130 lbs Dosage: 15 mg intranasal Setting: My house Here is an overall summary of this drug that I wrote. This is a detailed report of a single experience. Preface: The design for 3-Me-PCE is a straightforward low-risk bet for an active arylcyclohexylamine.

    scraped 2026-03-14
    Pce 5 Mg First Time Overlooked Curiousity neutral

    [Retrospective note: This report was written while partially under the influence. PCE most definitely has an ego-inflating aspect. Please keep this in mind while reading my somewhat self-loving report.] It is truly unfortunate that there is so little information available on Arylcyclohexamines, as somewhere between Ket...

    scraped 2026-03-14
    2 Keto Pce First Time Methoxetamines Retarded Cousin neutral

    This is basically Tiletamine with a phenyl instead of a thienyl ring. I got the chance to try this one. I was *extremely* excited as it is the closest we have to a Ketamine analogue (but still very far)...

    scraped 2026-03-14

    Bluelight Reference Guide Bluelight

    Dissociatives The Small & Handy PCE (Eticyclidine) Thread

    I wanted to start one of these "Small & Handy" threads for a long time and it seems now is the time because I might receive a yet unknown quantity of this rare dissociative.

    Read full thread on Bluelight โ†’

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