🏠 Home

    4-MeO-Butyrfentanyl

    Aliases: 4-meo-bf

    Categories

    tentative research-chemical opioid habit-forming

    Summary

    Rare and basically unknown opioid and fentanyl analogue (not to be confused with Butyrfentanyl). Virtually no reliable information exists, safe dosages are unknown. Exercise extreme caution. Overdose may result in respiratory depression. Do not mix with stimulants or depressants.

    Onset, Duration & After-effects

    • Onset:
      • Insufflated: 1-2 minutes
      • Oral: 5-15 minutes
    • Duration:
      • Insufflated: 30-75 minutes
      • Oral: 45-120 minutes
    • After-effects: 1-2 hours