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

    a-PBP Limited data
    Limited data
    Sparse data. Doses and effects may be unreliable or untested.
    • 2 corroborating sources
    • 1 ROA with full dose ladder
    • duration data present
    • classified Tentative
    • classified Research-chemical

    Aliases: alpha-pbp, Ξ±-pbp

    Summary TripSit

    Stimulant that is the homologue between Ξ±-PPP and Ξ±-PVP.

    Dose Information source varies by band

    ROA Light Common Strong
    Oral 10-25mg 25-50mg 50mg+
    Light Common Strong
    Sources· 1 of 1 ladders not fully identified

    Oral

    Dose ladder — Light, Common: DrugsPRO · Strong: not identified

    Onset, Duration & After-effects TripSit

    ROA Onset Peak After Effects Total
    Oral 20-35 min 3-4 hrs 1-24 hrs 3-4 hrs

    Effect Profile

    class estimate

    Scores (0–10) curated from multiple sources:

    • Effect keyword matching from PsychonautWiki catalog
    • No reports exist for this substance. Its effect list is the one shared by 1 other substance of the same class, so the scores below describe the class, not this compound.
    • Weighted by importance: core (×3), major (×2), minor (×1)

    Full methodology

    Stimulant 3.8
    Moderate 4/10

    Moderate stimulation and euphoria with strong anxiety/jitters

    Stimulation / Energy ×3
    6
    stimulation wakefulness alertness enhancement
    Euphoria / Mood Lift ×2
    6
    euphoria cognitive euphoria
    Focus / Productivity ×2
    0
    ⚠ Anxiety / Jitters ×1
    10
    anxiety restlessness increased heart rate vasoconstriction

    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

    Positive
    Negative
    Neutral
    Positive
    Negative
    Neutral
    Positive
    Negative
    Neutral

    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.

    Bluelight 1 thread 1 neutral visit
    A Pbp First Time Retrospective neutral

    a-pBp Trip Report ----------------- This is for the research chemical *a-pBp* (not a-pVp). *** Note: This substance is a dopamine reuptake inhibitor stimulant, thus can be binge-y and addictive like all of them.

    →

    Helpful Links

    Add to PsychonautWiki Journal

    The PsychonautWiki Journal logging app doesn't include every substance. To track a-PBP there, start adding an ingestion, search for the name, and choose to add it as a custom substance. Paste these values:

    Name
    a-PBP
    Unit
    mg
    Description
    a-PBP
    Source: SubstanceSearch (substancesearch.com)
    
    Oral dose (mg): light 10-25 Β· common 25-50 Β· strong 50+
    
    Oral duration: onset 20-35m Β· peak 3-4h Β· total 3-4h Β· after-effects 1-24h
    
    Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.

    Tip: for quicker logging you can also add a Custom Unit in the app, e.g. common dose ~ 37.5 mg (Oral).

    The app keeps custom substances simple, so the full dose ranges live in the description text above. Ranges are harm-reduction guidance, not a prescription.