Home
    Disclaimer
    3-HO-PCE molecular structure

    3-HO-PCE Stats & Data

    3-oh-pce 3-hydroxy pce Hydroxyeticyclidine 3hopce
    NPS DataHub
    MW219.33
    FormulaC14H21NO
    SMILESCCNC1(CCCCC1)c1cccc(O)c1
    InChIKeyMIKNPNLBFHVMKK-UHFFFAOYSA-N
    Arylcyclohexylamines; 2021/6. Von Arylcyclohexylamin abgeleitete Verbindungen; 2022/6. Von Arylcyclohexylamin abgeleitete Verbindungen
    Psychoactive Class Dissociative
    Half-Life Estimated 3–5 hours (no human PK study; in vitro HLM metabolism suggests multiple first‑pass pathways)

    Receptor Profile

    Receptor Actions

    Agonists
    μ-opioid receptor agonist (theoretical, unconfirmed in humans)
    Antagonists
    NMDA receptor antagonist (noncompetitive)

    Receptor Binding

    NMDA antagonist

    History & Culture

    3-HO-PCE emerged on the grey market research chemical scene during the 2010s without any prior presence in scientific literature. Unlike its close structural analog 3-HO-PCP, which had been discussed in underground chemistry forums since the late 1990s before appearing as a designer drug in 2009, 3-HO-PCE appears to have been synthesized specifically for commercial distribution through online research chemical vendors rather than originating from academic or clandestine chemistry documentation. The substance remains poorly characterized from a scientific standpoint. As of the early 2020s, no independent analytical laboratories had conducted formal studies on samples of 3-HO-PCE distributed through grey market channels, and there continues to be a notable absence of data regarding its pharmacological properties, metabolism, and toxicity profile. This lack of documentation places 3-HO-PCE among the many novel arylcyclohexylamines whose properties are primarily understood through user reports rather than controlled research.

    Effect Profile

    Curated + 4 Reports
    Dissociative 6.4

    Strong dissociative depth and mania with moderate motor impairment and insight

    Dissociative Depth×3
    10
    Mania / Compulsion×1
    10
    Insight / Novel Thought×2
    6
    Motor / Sensory Impairment×1
    7

    Duration Timeline

    Bluelight
    Onset Comeup Peak Offset After Effects
    Oral
    19-45 minutes
    30 minutes - 1.0 hours
    1-3 hours
    2-3 hours
    1-4 hours
    Total: 3-4 hours
    Insufflated
    4-15 minutes
    15-30 minutes
    1-3 hours
    2-3 hours
    1-4 hours
    Total: 3-4 hours

    Community Effects

    TripSit
    Positive
    sedation

    Tolerance & Pharmacokinetics

    drugs.wiki
    Half-Life
    Estimated 3–5 hours (no human PK study; in vitro HLM metabolism suggests multiple first‑pass pathways)
    Addiction Potential
    Low–to–moderate psychological craving; periodic use can lead to compulsive redosing in susceptible users. Rapid tolerance discourages daily use but binge patterns have been reported.

    Tolerance Decay

    Full tolerance 3d Half tolerance 7d Baseline ~28d

    Modeled on typical arylcyclohexylamine patterns: rapid within‑week build, week‑scale decay. Data quality mostly anecdotal; adjust conservatively.

    Cross-Tolerances

    Ketamine
    60% ●○○
    O‑PCE / MXE‑like ACHs
    60% ●○○
    PCP analogues (3‑MeO‑PCP, 3‑HO‑PCP)
    60% ●○○

    Experience Report Analysis

    Erowid
    4 Reports
    2017–2021 Date Range
    3 With Age Data
    5 Effects Detected

    Demographics

    Gender Distribution

    Age Distribution

    Reports Over Time

    Effect Analysis

    Erowid

    Effects aggregated from 4 experience reports (4 Erowid)

    4 Reports
    5 Effects Detected
    2 Positive
    1 Adverse
    2 Neutral

    Effect Sentiment Distribution

    Confidence Distribution

    Positive Effects 2

    Body High 75.0% 70%
    Stimulation 75.0% 70%

    Adverse Effects 1

    Memory Suppression 75.0% 70%

    Real-World Dose Distribution

    62K Doses

    From 50 individual dose entries

    Rectal (n=15)

    Median: 20.0mg 25th: 15.0mg 75th: 20.0mg 90th: 20.0mg

    Insufflated (n=8)

    Median: 4.0mg 25th: 4.0mg 75th: 10.0mg 90th: 14.5mg

    Oral (n=27)

    Median: 20.0mg 25th: 10.0mg 75th: 20.0mg 90th: 35.0mg

    Form / Preparation

    Most common forms and preparations reported

    Legal Status

    Country Status Notes
    Germany Controlled (NpSG) Regulated under the Neue-psychoaktive-Stoffe-Gesetz (New Psychoactive Substances Act) since July 18, 2019. Production, importation for market distribution, administration to others, and commercial distribution are criminal offenses. Personal possession is prohibited but does not carry criminal penalties.
    Sweden Consumption illegal Not scheduled as a controlled substance for research purposes. However, human consumption is prohibited under Swedish law.
    Switzerland Controlled (Verzeichnis E) Specifically listed as a controlled substance under Verzeichnis E of the Swiss narcotics scheduling system.
    Turkey Illegal Classified as a controlled drug under Turkish narcotics legislation. Possession, production, supply, and importation are all prohibited.
    United Kingdom Class B Controlled under the Misuse of Drugs Act 1971 via the arylcyclohexylamine generic clause introduced by Statutory Instrument 2013/239, effective February 26, 2013. This catch-all provision was recommended following an Advisory Council on the Misuse of Drugs report in October 2012 that addressed methoxetamine and its analogues. Possession, production, supply, and importation are criminal offenses.

    Harm Reduction

    drugs.wiki

    • Batch variability and mislabeling have been reported in the unregulated market, including cases where material sold as 3‑HO‑PCE behaved like an opioid (e.g., O‑DSMT). Use professional drug checking when possible; reagent kits will not reliably detect mislabeling and fentanyl strips do not detect O‑DSMT. Start with an allergy dose and avoid redosing until baseline pharmacology is clear. Community threads describe inconsistent potency and occasional opioid‑like effects when misidentified, underlining the need to test.

    • Volumetric dosing is strongly advised. Even at 10–40 mg active ranges, small scale errors can double the intended dose. TripSit guidance for potent arylcyclohexylamines recommends volumetric dosing and warns that onset can be delayed, so early redosing is a key cause of accidental overintoxication.

    • Avoid CNS depressants (alcohol, opioids, GHB/BDO, high‑dose benzodiazepines). Dissociatives and depressants can synergize to cause vomiting with aspiration, loss of consciousness, and respiratory depression; TripSit flags these combinations as unsafe or dangerous across the class.

    • Allow long redose intervals (≥2 hours). Community reports consistently call 3‑HO‑PCE a ‘creeper’; premature redosing can suddenly stack effects into panic, delirium, or functional impairment.

    • Mood lability, hypomania/insomnia, and panic can occur—particularly with redosing, stimulant co‑use, or sleep deprivation. Plan set/setting, avoid driving or hazardous tasks during the experience and until fully baseline. Multiple first‑hand reports describe stimulating, psychiatric‑like headspaces and poor sleep if taken late.

    • Urinary risk: While specific human data for 3‑HO‑PCE are lacking, chronic/high‑frequency use of arylcyclohexylamines (e.g., ketamine) is linked to cystitis and bladder damage. Keep frequency moderate, maintain hydration, and stop if urinary symptoms (urgency, pain, blood) appear.

    • Drug testing: PCP immunoassays have poor specificity and cross‑react with several substances; ketamine can yield false‑positive PCP screens. ACHs may therefore trigger presumptive PCP positives; confirmation by GC/MS is definitive.

    • Metabolism/detection: In vitro HLM and user sample work identifies multiple phase‑I and O‑glucuronide metabolites for 3‑HO‑PCE. Targeted LC‑HRMS can detect M10 in urine and M5 in hair—useful if forensic confirmation is needed; routine immunoassays will not target these analytes.

    • Intranasal care: Finely crush material, use your own clean straw, alternate nostrils, and rinse with saline pre/post to reduce mucosal injury.

    • Tolerance rises rapidly across ACHs; spacing sessions by several weeks reduces escalation and adverse mental effects. Cross‑tolerance with ketamine/O‑PCE/PCP‑like compounds is expected.

    References

    ← Back to 3-HO-PCE