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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.
Dosage
Insufflated
Common: 25-40ug
Light: 10-25ug
Strong: 40-65ug+
Duration
Onset: undefined minutes
Duration: undefined hours
After effects: undefined hours