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    Cyclopentyl-Fentanyl

    Aliases: cp-f, cpf

    Categories

    opioid tentative research-chemical depressant habit-forming

    Summary

    An analogue of fentanyl that is unknown in literature, seems to be less potent than its former being Acetyl-Fentanyl. Yet reports have yet to surface. Be careful.

    Onset, Duration & After-effects