Parafluorofentanyl
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Also known as pff, 4-fluorofentanyl
Rare, little known and extremely potent analogue of Fentanyl developed by Janssen Pharmaceutica in the 1960s. Use with extreme caution and never mix with other depressants.
Insufflated
Route dataTripSit
| Threshold | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| — | 10–25 µg | 25–40 µg | 40–65 µg | —+ |
065 µg
LightCommonStrongHeavy
Source: TripSit — Parafluorofentanyl ↗
Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.