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    Furanylfentanyl

    Aliases: fu-f, furanyl-fentanyl

    Categories

    research-chemical habit-forming tentative opioid depressant

    Summary

    An extremely potent opioid analgesic and analogue of fentanyl. Concrete information is difficult to obtain about even basic properties like active dose, though it is believed to be slightly less potent and shorter in duration than butyrfentanyl. Exercise extreme caution. Will cause respiratory depression in overdose.

    ⚠️ Very potent opioid, be very careful while dosing.

    Dose Information

    Onset, Duration & After-effects

    • Onset: 1-10 minutes
    • Duration: 1-3 hours
    • After-effects: 1-3 hours