2-FEA is a novel synthetic stimulant of the substituted amphetamine class. It is the N-ethylated homolog of 2-fluoroamphetamine (2-FA), featuring an ethyl group bound to the terminal amine of the amphetamine backbone. 2-FEA produces classical stimulant and entactogenic effects, including stimulation, enhanced focus, and euphoria. It has limited documented history of human use and is primarily available through the online research chemical market.
Also known as: O-fluoroethamphetamine, 2-fluoroethylamphetamine, Ortho-fluoroethamphetamine, 2-fluoroethamphetamine, 2-F-ethylamphetamine
Classification
Chemical: Amphetamine
Psychoactive: Entactogen
Psychoactive: Stimulant
Tag: Research-Chemical
Tag: Substituted amphetamine
Tag: Tentative
Effects
Stimulation
Nausea
Headache
Vasoconstriction
Frequent Urination
Temporary Erectile Dysfunction
Wakefulness
Motivation Enhancement
Emotion Suppression
Thought Acceleration
Ego Inflation
Time Distortion
Dehydration
Increased Libido
Disinhibition
Bodily Control Enhancement
Appetite Suppression
Drifting
Routes of Administration
Insufflated
Dosage
Heavy: 60+ mg
Light: 20 – 30 mg
Common: 30 – 40 mg
Strong: 40 – 60 mg
Threshold: 15 mg
Duration
Onset: 0.1-0.2 h
Comeup: 0.1-0.2 h
Peak: 0.5-1 h
Offset: 0.5-1 h
After Effects: 1-3 h
Oral
Dosage
Heavy: 60 mg+
Light: 15–25 mg
Common: 25–40 mg
Strong: 40–60 mg
Threshold: 10 mg
Duration
No data available for this section yet.
Rectal
Dosage
Heavy: 45 mg+
Light: 12–20 mg
Common: 20–32 mg
Strong: 32–45 mg
Threshold: 8 mg
Duration
No data available for this section yet.
Sublingual
Dosage
Heavy: 50 mg+
Light: 15–25 mg
Common: 25–35 mg
Strong: 35–50 mg
Threshold: 10 mg
Duration
No data available for this section yet.
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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2-FEA - DrugsPRO substance guide
2-FEA: 2-FEA is a novel synthetic stimulant of the substituted amphetamine class. It is the N-ethylated homolog of 2-fluoroamphetamine (2-FA), featuring an ethyl group bound to the terminal amine of the amphetamine backbone. 2-FEA produces classical stimulant and entactogenic effects, including stim
