Parafluorofentanyl
Typical Dose 25-40 ug
Duration 3h - 4h
Interaction Risk Unknown
Detection Methods 1
Description
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.
Effects & Dosing
Dosage
Insufflated
| Light | Common | Strong |
|---|---|---|
| 10-25 ug | 25-40 ug | 40-65 ug+ |
Duration
Insufflated
Onset 0 min - 1 min
Total Duration 2h - 3h
Oral
Onset 5 min - 10 min
Total Duration 3h - 4h
Safety & Risks
Detection Times
| Method | Detection Window |
|---|---|
| Urine | 1–3 days |
Note: Fentanyl analogue. Detection by fentanyl immunoassay varies. NOT detected by standard opiate immunoassay.
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