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A-PIHP

This article is a stubmissing:
Subjective Effects
Pharmacology
Interactions
Legality
A-PIHP molecule structureA-PIHP molecule structure
Open in Piru
Chemical Class
Pyrrolidinophenone

α-PiHP is a synthetic cathinone in the α-pyrrolidino-based cathinone group1. Information from Internet discussion forums appears limited1, and reports suggest it may produce stimulant effects1 while tolerance can develop rapidly; as tolerance builds, its effects may diminish or become absent. These tolerance-related reports remain tentative.

Dosage & Duration

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Dosage

Doses are population estimates that vary widely between individuals.

Threshold1-3 mg
Light3-10 mg
Moderate10-25 mg
Strong25-40 mg
Heavy40+ mg

Subjective Effects

Subjective Effects not written up yet

Reagent Testing

Expected colorimetric results for common reagent tests. Colors show reaction change over 1–2 minutes.

Mandelin(MD)
yellow2 → orange2 → red2 → brown2 → yellow2
Robadope(RB)
orange1 → yellow2
Liebermann(LB)
white → yellow1
Scott(SC)
pink2 → blue2
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Pharmacology

Pharmacology not written up yet

Interactions

Interactions not written up yet

An unlisted combination is an unknown one, not a safe one. Check a dedicated combination chart before mixing.

Check TripSit

Tolerance

Tolerance timelines are rules of thumb, not exact schedules, and vary widely between individuals and use patterns.

Full Tolerance
Tolerance is suspected to develop rapidly, with effects reportedly diminishing over time as tolerance builds.

Harm Potential

Addiction & Dependence

Psychological

High

Classified as habit-forming. Rapid tolerance development with diminishing effects over time suggests a pattern conducive to compulsive redosing and escalating use.

History & Culture

A-PIHP is described as a relatively new pyrrolidine-based stimulant, with limited information available about it.1

Legality

Legality not written up yet

References

Citations

  1. 45th ECDD (2022): α-Pyrrolidinoisohexanophenone. World Health Organization (2022). https://cdn.who.int/media/docs/default-source/controlled-substances/45th-ecdd/a-pihp-eh_sb_edit-1.pdf?sfvrsn=628a3f2f_11234

Further Reading

  1. Liu et al. 2016 - Identification and analytical characterization of nine synthetic cathinone derivatives N‐ethylhexedrone, 4‐Cl‐pentedrone, 4‐Cl‐α‐EAPP, propylone, N‐ethylnorpentylone, 6‐MeO‐bk‐MDMA, α‐PiHP, 4‐Cl‐α‐PHP, and 4‐F‐α‐PHP

Article Status

  • Josie Kins avatar
    Step 1 · Automated synthesis

    An autonomous workflow built by Josie Kins compiled this article's foundation from information published across the web.

  • Step 2 · First-pass reviewPending

    Not yet reviewed: this article is pending editorial review by Lyrea.

  • Step 3 · Citation reviewPending

    No one has reviewed this article's citations yet. That second pass checks each claim against the source it cites.

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