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4-Fluorofentanyl

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Found in: 


Fentanyl

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Type/Reason added: 


Synthetic opioid, Fentanyl analog / Opioid effects

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Relative Potency: 


analgesic potency: about 30% of fentanyl (11), 16 times more potent than morphine (12)

Description and Classification

4-Fluorofentanyl: A synthetic opioid and a fentanyl analog, modified with a fluorine atom at the para position of the phenethyl group.

Relative Potency

Potency: Slightly less potent than fentanyl but still extremely potent—many times more potent than morphine.

Why It Is Added

Purpose

It is added to mimic the potent analgesic and euphoric effects of fentanyl. Often used in illicit drug markets as a substitute for fentanyl or to enhance the potency of other drugs.

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