2-FEA
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 5 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 20 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Tentative
- classified Research-chemical
- 5 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 20 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Tentative
- classified Research-chemical
Aliases: O-fluoroethamphetamine, 2-fluoroethylamphetamine, Ortho-fluoroethamphetamine
Summary
2-Fluoroethamphetamine (2-FEA) is a novel stimulant substance of the amphetamine class that produces classical stimulant effects such as stimulation, enhanced focus and euphoria when administered. The exact effects of 2-FEA are not well known by its users with anecdotal reports suggesting only minimal activity and possible serotonergic qualities. 2-FEA is sold on the online research chemical market.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Insufflated | 20-30mg | 30-40mg | 40-60mg | 60mg+ |
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 20-60 min | 30-45 min | 1.5-3 hrs | 1-2 hrs | 3.33-6.75 hrs |
| Insufflated | 5-15 min | 15-30 min | 1.5-3 hrs | 1-2 hrs | 2.83-5.75 hrs |
| Rectal | 5-20 min | 20-40 min | 1.5-3 hrs | 1-2 hrs | 2.91-6 hrs |
| Sublingual | 15-30 min | 25-40 min | 1.5-3 hrs | 1-2 hrs | 3.17-6.17 hrs |
Effect Profile
Scores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong body load with low visuals and headspace
Moderate stimulation and euphoria with mild sensory enhancement
Strong anxiety/jitters and focus with moderate stimulation and euphoria
Add missing routes to PsychonautWiki Journal
The PsychonautWiki Journal app already has 2-FEA, but its built-in entry only covers Insufflated. Here are the other routes we have data for. You can't edit a built-in substance, but you can add a Custom Unit for any of these routes to log it.
2-FEA: routes the PsychonautWiki Journal app is missing Source: SubstanceSearch (substancesearch.com) Oral dose (mg): threshold 10 Rectal dose (mg): threshold 8 Sublingual dose (mg): threshold 10 Oral duration: onset 0.33-1h · come-up 30-45m · peak 1.5-3h · offset 1-2h · total 3.33-6.75h · after-effects 2-6h Rectal duration: onset 5-20m · come-up 20-40m · peak 1.5-3h · offset 1-2h · total 2.91-6h · after-effects 2-6h Sublingual duration: onset 15-30m · come-up 25-40m · peak 1.5-3h · offset 1-2h · total 3.17-6.17h · after-effects 2-6h Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.
Custom Units carry a single dose per route, so the full ranges live in the reference above. A route's suggested dose is the midpoint of its common range. Ranges are harm-reduction guidance, not a prescription.
Tolerance
Tolerance Decay
Anecdotal patterns similar to other amphetamines: short‑term tolerance can develop across consecutive days; spacing use by at least 1–2 weeks is commonly reported to reduce residual insomnia/low mood. Data quality: anecdotal.
Effects
- Stimulation
- Physical euphoria
- Stamina enhancement
- Bronchodilation
- Pupil dilation
- Dry mouth
- Increased perspiration
- Increased heart rate
- Increased blood pressure
- Vasoconstriction
- Teeth grinding
- Temporary erectile dysfunction
- Nausea
- Headache
- Abnormal heartbeat
- Sedation
- Restless legs
- Frequent urination
- Increased bodily temperature
- Brightness alteration
- Stamina intensification
- Cognitive euphoria
- Focus enhancement
- Motivation enhancement
- Wakefulness
- Analysis enhancement
- Anxiety
- Emotion suppression
- Delusion
- Depression
- Paranoia
- Irritability
- Thought deceleration
- Depersonalization
- Compulsive redosing
- Cognitive fatigue
- Psychosis
- Motivation depression
- Time distortion
- Thought acceleration
- Ego inflation
- Thought organization
- Focus intensification
- Increased libido
- Tactile enhancement
- Increased music appreciation
- Bodily control enhancement
- Pattern recognition enhancement
- Appetite suppression
- Dehydration
- Disinhibition
- Drifting
- Tactile intensification
Combinations
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