At a Glance
Dosage
Only in 2-FEA
insufflated
| Level | Dose |
|---|---|
| Threshold | 15 mg |
| Light | 20–30 mg |
| Common | 30–40 mg |
| Strong | 40–60 mg |
| Heavy | 60 mg |
Only in 4-FA
oral
| Level | Dose |
|---|---|
| Threshold | 40 mg |
| Light | 40–100 mg |
| Common | 100–130 mg |
| Strong |
Duration
Only in 2-FEA
insufflated
Total: 1 hrs – 2.5 hrsPeak
Offset
Afterglow
Onset5 min – 15 min
Come Up5 min – 10 min
Peak30 min – 1 hrs
Offset30 min – 1 hrs
Effects
Safety
Interaction: 2-FEA + 4-FA
No direct interaction data available between these substances. This does not mean the combination is safe.
2-FEA — Dangerous Interactions
4-FA — Dangerous Interactions
Frequently Asked Questions
What is the difference between 2-FEA and 4-FA?
2-FEA is classified as a Entactogen, Stimulants (Substituted amphetamines) while 4-FA is classified as a Entactogen, Stimulants (Substituted amphetamines). They share 36 effects in common, with 20 effects unique to 2-FEA and 19 unique to 4-FA.
Is it safe to combine 2-FEA and 4-FA?
There is no direct interaction data available for combining 2-FEA and 4-FA. This does not mean the combination is safe. Always exercise caution and research thoroughly.
Which is stronger, 2-FEA or 4-FA?
2-FEA and 4-FA are typically administered via different routes, making a direct potency comparison difficult. They belong to different pharmacological profiles and should not be compared by dose alone.