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A rare opioid and fentanyl analogue (not to be confused with acetyl-fentanyl), this drug is a powerful and potent analgesic. Little reliable information exists, even for basic usage such as dosage. Exercise extreme caution. Overdose may result in respiratory depression. Do not mix with depressants or stimulants. Potentially neurotoxic and carcinogenic.

Oral

Route dataTripSit

ThresholdLightCommonStrongHeavy
5–12.5 µg12.5–25 µg25–47.5 µg—+
047.5 µg
LightCommonStrongHeavy
Onset10–45 minutes
Total3–5 hours
After-effects1–16 hours
OnsetCome-upPeakOffset
Plan when to take Acrylfentanyl — see where onset, peak and comedown land on the clock

Source: TripSit — Acrylfentanyl ↗

Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.