↳ Index > Factsheets > Parafluorofentanyl
| Parafluorofentanyl | Info |
|---|
| Summary | 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. |
| Dose | Insufflated Light: 10-25ug Common: 25-40ug Strong: 40-65ug+ |
| Onset | Oral: 5-10 minutes. Insufflated: 0-1 minute. |
| Duration | Oral: 3-4 hours. | Insufflated: 2-3 hours. |
| After-effects | Oral: 1-4 hours. | Insufflated: 1-2 hours. |
| Aliases | pff 4-fluorofentanyl |
| Categories | opioid depressant habit-forming tentative |