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    Methoxpropamine Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 2 corroborating sources
    • 1 ROA with full dose ladder
    • duration data present
    • 18 combo interactions documented
    • dose data not in PW/TripSit (unverifiable)

    Aliases: Mxpr

    Summary

    Methoxpropamine is a dissociative. Reported effects include physical euphoria, pain relief, analgesia, and time distortion.

    Perspectives

    “Short sweet and intense yet hollow. A dissociative shell over a great hollow nothingness—lacking the euphoric rush of other dissociatives but with vibrant and intense colorful, flashy visuals.”

    Dose Information

    ROA Light Common Strong Heavy
    Oral 20-30mg 30-60mg 60-100mg 100mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects

    ROA Onset Peak Total
    Oral 3-30 min 2-3 hrs 4-6 hrs

    Effect Profile

    10 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 6.0
    Strong 6/10

    Strong dissociative depth and motor impairment with mild mania, low insight

    Dissociative Depth ×3
    10
    depersonalization derealization physical disconnection visual disconnection spatial disorientation perception of bodily lightness +2 more
    Mania / Compulsion ×1
    4
    disinhibition stimulation
    Insight / Novel Thought ×2
    3
    conceptual thinking
    Motor / Sensory Impairment ×1
    10
    motor control loss physical disconnection tactile suppression numbness spatial disorientation visual disconnection +1 more

    Tolerance

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

    Tolerance Decay

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

    Effects Erowid

    Aggregated from 10 Erowid experience reports

    Positive Effects 10

    Stimulation 80.0% 70%
    Euphoria 70.0% 70%
    Color Enhancement 70.0% 70%
    Empathy 60.0% 70%
    Tactile Enhancement 60.0% 70%
    Music Enhancement 50.0% 70%
    Focus Enhancement 40.0% 70%
    Body High 40.0% 70%
    Introspection 30.0% 70%
    Creativity Enhancement 30.0% 70%

    Adverse Effects 5

    Nausea 50.0% 70%
    Confusion 50.0% 70%
    Motor Impairment 40.0% 70%
    Anxiety 30.0% 70%
    Increased Heart Rate 30.0% 70%

    Combinations TripSit

    Cross-Check Methoxpropamine with another substance

    Trip Reports Effect Index

    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.

    Erowid 7 reports 7 neutral visit
    For a First Trial, I'm Fairly Impressed neutral exp #113723

    3-MeO-2'-oxo-PCPr / MXPr - 22mg + 17mg orally For a First Trial, I'm Fairly Impressed 10-24-2019 by Xorkoth 7:20pm (T+0:00) - Weighed out and ate 22mg. I meant to go for 20, but an extra 2mg came out so I went with it. I had an intense work day and feel rather aggravated about it.

    Xorkoth · 22 mg oral / 17 mg oral / 1 glass oral
    Constant Evolution neutral exp #118631

    Hello, Today I’d like to share a recent experience I have had with 50mg of MXPr (or 3-MeO-2’-Oxo-PCPr) orally and in combination with a joint of cannabis later on. Having little information available around on this compound, I had moderate expectations but ended up being quite surprised.

    MineCamo · MXPr · 50 mg oral / smoked
    Light Show in the Void neutral exp #113789

    Age: 24 Weight: 135 lbs Dosage: 60 mg Intranasal Setting: My apartment T0:00- Dose administered, a fairly large quantity of powder which is very light and fluffy. It stings a good bit initially but this quickly fades to an aching discomfort. After about 1 minute its really not too bad at all.

    nervewing · 60 mg insufflated / 1 cig. smoked
    MXPr = MXE Squared neutral exp #113720

    Today is the second day of a 2-day binge wherein I took a grand total of 500mg. The MXPr has all been long since consumed, I am now, at 20 hours after ingestion, still in the process of coming down, and comfortably so.

    Asante · 25 mg rectal / 50 mg rectal / 50 mg rectal / repeated rectal
    A *Pr*operly Mextifying View of Reality neutral exp #115640

    How might an oak see the world? How might a ladybug? If you could consolidate the mycelial net of a mile-wide fungal colony and put it in a two-legged body, how might its perceptions differ from yours? Imagine if it had access to the knowledge, the understanding that you’ve gathered through your years on Earth, but vie...

    TiHKALmonster · MXPr · 40 mg insufflated / 40 mg insufflated / 40 mg insufflated / 3040 mg insufflated
    Pleasant Warmth Meets Plain Dissociation neutral exp #115014

    • Setting: At home, in my bed • Tolerance: Maybe a little, but not much (I use dissos 1-2 p. month on average). Last experience was a k-hole 17 days ago. • Prior disso experience: R,S-ketamine: 25x (at least) // 2-FDCK: 5x // DCK: 5x // Nitrous Oxide: 5x // DXM (low dose): 3x // 3-MeO-PCE: 2x // 3-MeO-PCP: 1x No substa...

    Psychestim · 32 mg sublingual / 28 mg sublingual / smoked
    Repetitive Nonsense neutral exp #114806

    I feel I owe a report on this novel dissociative since there is such little info. It started on a Wednesday. I first tried 30mg insufflated to see if the reports of potency were wrong. Minor dissociation starts at +20 minutes. It is very functional at this point. Hard to tell if I'm even on a substance or not.

    UMPHS11 · 30 mg insufflated / 60 mg insufflated
    Bluelight 4 threads 3 neutral 1 cautionary visit
    Mxpr 22mg 17mg Oral First Time For A First Trial Im Fairly Impressed neutral

    3-MeO-2'-oxo-PCPr / MXPr - 22mg + 17mg orally For a First Trial, I'm Fairly Impressed 10-24-2019 by Xorkoth ​ 7:20pm (T+0:00) - Weighed out and ate 22mg. I meant to go for 20, but an extra 2mg came out so I went with it. I had an intense work day and feel rather aggravated about it.

    scraped 2026-03-14
    Mxpr 60 Mg Intranasal First Time Light Show In The Void neutral

    Age: 24 Weight: 135 lbs Dosage: 60 mg Intranasal Setting: My apartment T0:00- Dose administered, a fairly large quantity of powder which is very light and fluffy. It stings a good bit initially but this quickly fades to an aching discomfort. After about 1 minute its really not too bad at all.

    scraped 2026-03-14
    Mxpr 200mg Plugged First Time Messed Up Big Time On Mxpr cautionary

    Ive posted this elsewhere on bluelight, but as requested, here it is copy and pasted into the trip reports forum: So.... I'm a god damn idiot. I fucked up big time with this chem. This is not a warning so much as a tale of stupidity. A long tale. I've just finished writing it and its definitely a tl;dr.

    scraped 2026-03-14

    Bluelight Reference Guide Bluelight

    Dissociatives The Big and Dandy 3-MeO-2-oxo-PCPr (MXPr) Thread

    I just received word from what promises to be a reliable source (there are reasons to not doubt this is true) that 3-MeO-2-oxo-PCPr, that is, MXE with a PCPr base instead of a PCE base, will be released in the near future.

    Read full thread on Bluelight →

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