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4-MEO-BUTRYFENTANYLInfo
SummaryRare 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.
OnsetOral: 5-15 minutes.
Insufflated: 1-2 minutes.
DurationOral: 45-120 minutes. | Insufflated: 30-75 minutes.
Aliases4-meo-bf
Categoriestentative
research-chemical
opioid
habit-forming
After-effects1-2 hours.