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4-FEA
4-Fluoroethamphetamine
4-FEA,
p-Fluoroethamphetamine,
para-Fluoroethamphetamine
Psychoactive Class
Stimulant
Entactogen
Chemical Class
Amphetamine (substituted)
Contents
Dosage & Duration
Pharmacology
Harm Potential
Sources
Dosage & Duration
Oral
Dosage
Threshold
~25 mg
Light
25-50 mg
Moderate
50-75 mg
Strong
75-150 mg
Heavy
150+ mg
Note: Tentative data as of writing.
Duration
Onset
40-60 minutes
After Effects
1-12 hours
Total
4-6 hours
Reagent Testing
Loading reagent data...
Pharmacology
Pharmacodynamics
Sources
Bluelight: Community Reports - 4-FEA Experiences
https://bluelight.org/xf/threads/anyone-tried-4-fea-yet.845462
Wikipedia: 3-Fluoroethamphetamine Pharmacology
https://en.wikipedia.org/wiki/3-Fluoroethamphetamine
Further Reading
3
Cayman Chemical - 4-Fluoroethamphetamine Reference Standard
https://www.caymanchem.com/product/25811/4-fluoroethamphetamine-(hydrochloride)
4
Kuypers et al. - 4-Fluoroamphetamine Pharmacokinetics Study (2019)
https://doi.org/10.1080/02791072.2019.1569286
Kuypers et al. – 4-Fluoroamphetamine PK Study (proxy for half-life)
https://pubmed.ncbi.nlm.nih.gov/30912312/
+5
10 sources cited
