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

    4-AcO-MiPT

    Aliases: Mipracetin, O-acetylmiprocin, 4acomipt

    Psychedelic Empathogen Research-chemical

    Summary TheDrug.Wiki Erowid TripSit PsychonautWiki

    4-AcO-MiPT is a synthetic psychedelic tryptamine that remains relatively uncommon with limited history of human use. The substance is hygroscopic and degrades quickly when exposed to moisture or improper storage; it should be kept in an inert atmosphere in a freezer. The material can develop a sticky, goop-like consistency when exposed to air.

    Perspectives

    “This may now take the throne as my new favorite psychedelic. The headspace is nothing short of delightful—it's whimsical, empathogenic, and feels overall like a pleasant dream.”

    Dose Information TheDrug.Wiki TripSit PsychonautWiki

    ROA Light Common Strong Heavy
    Oral 10-15mg 15-20mg 20-35mg 35mg+
    Vapourized 2-5mg 5-10mg 10-15mg 15mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects TheDrug.Wiki TripSit PsychonautWiki

    ROA Onset Comeup Peak Offset After Effects
    Oral 19-60 min 1-2 hrs 1.5-3 hrs 1-2 hrs 2-4 hrs
    Vapourized 1-1 min - 1-2 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

    Psychedelic 9.8
    Extreme 10/10

    Strong visuals, headspace, and auditory effects with low body load

    Visual Intensity ×3
    10
    colour enhancement drifting tracers synaesthesia pattern recognition enhancement colour shifting +4 more
    Headspace Depth ×3
    10
    conceptual thinking thought connectivity emotion enhancement perspective distortions thought loops personal bias suppression +1 more
    Auditory Effects ×1
    10
    auditory distortion auditory hallucination synaesthesia
    ⚠ Body Load / Somatic Effects ×1
    2
    nausea
    Empathogen 2.7
    Light+ 3/10

    Strong sensory enhancement with mild stimulation, low euphoria

    Empathy / Social Openness ×3
    0
    Euphoria / Mood Elevation ×2
    2
    emotion enhancement
    Stimulation ×1
    5
    stimulation wakefulness
    Sensory Enhancement ×1
    10
    spontaneous tactile sensations colour enhancement visual acuity enhancement
    Based on reports from:
    Effect Index Oceanic Bluelight Big & Dandy Thread Erowid Experience Reports PsychonautWiki 4-AcO-MiPT
    View methodology →

    Tolerance

    Build-up develops rapidly after a single use
    Reset 7–14 days for baseline

    Tolerance Decay

    Full tolerance 1h Half tolerance 10d Baseline ~14d

    Cross-Tolerances

    Lysergamides
    LSD
    80%
    Tryptamines
    Psilocybin
    85%
    Psilocin
    85%
    DMT
    85%
    5-MeO-DMT
    85%
    Phenethylamines
    Mescaline
    65%
    2C-B
    65%
    2C-E
    65%

    Effects Erowid

    Aggregated from 3 Erowid experience reports

    Positive Effects 2

    Euphoria 100.0% 70%
    Music Enhancement 100.0% 70%

    Adverse Effects 0

    Combinations TripSit

    Trip Reports Effect Index

    Oceanic nervewing
    4-AcO-MiPT's nerd page Pharmacology, chemical data, effect profiles, and more
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    Helpful Links

    📘 Experience Reports 📖 TheDrug.Wiki 📖 Bluelight 📖 PsychonautWiki