3F-PiHP - Substance Search

Summary TheDrug.Wiki

3F-PiHP is a fluorinated pyrrolidinophenone cathinone structurally related to α-PiHP, α-PHP, and 3F-PVP. It produces forceful stimulation, sociability, and euphoria but also frequent anxiety, paranoia, and powerful redosing compulsions, especially when vaped or insufflated. First identified in Sweden and Finland in mid-2019; limited pharmacological and toxicological data exist.

Dose Information TheDrug.Wiki

Light Common Strong Heavy

Onset, Duration & After-effects TheDrug.Wiki

ROA	Onset	Comeup	Peak	Offset	After Effects
Insufflated	5-15 min	5-10 min	30-60 min	1-2 hrs	2-6 hrs
Oral	20-40 min	20-30 min	1-2 hrs	1-2 hrs	2-6 hrs

Effect Profile

Scores (1–10) curated from multiple sources:

Effect keyword matching from PsychonautWiki catalog
Weighted by importance: core (×3), major (×2), minor (×1)

Full methodology

Stimulant 4.6

Moderate+ 5/10

Strong anxiety/jitters with moderate euphoria and focus, low stimulation

Stimulation / Energy ×3

3

stimulation

Euphoria / Mood Lift ×2

7

physical euphoria cognitive euphoria motivation enhancement

Focus / Productivity ×2

7

focus enhancement motivation enhancement thought acceleration

⚠ Anxiety / Jitters ×1

10

anxiety paranoia teeth grinding increased heart rate vasoconstriction sweating

Based on reports from:

Erowid Experience Reports PsychonautWiki 3F-PiHP

Tolerance

Build-up develops over days to weeks of regular use

Reset 3–7 days for acute; 1–3 weeks for full reset

Tolerance Decay

Full tolerance 1d Half tolerance 3d Baseline ~7d

Pattern inferred from stimulant class and community reports: tolerance surges during binges and decays over days; significant inter‑individual variability. Avoid multi‑day runs; allow at least a week to partially reset. Data quality is anecdotal, not clinical.