At a Glance
Dosage
Only in 4F-EPH
oral
| Level | Dose |
|---|---|
| Threshold | 5 mg |
| Light | 5–10 mg |
| Common | 10–15 mg |
| Strong | 15–30 mg |
| Heavy | 30 mg |
Only in 2-FEA
insufflated
| Level | Dose |
|---|---|
| Threshold | 15 mg |
| Light | 20–30 mg |
| Common | 30–40 mg |
| Strong | 40–60 |
Duration
Only in 4F-EPH
oral
Afterglow
Onset: 10 min – 25 minAfterglow: 4 hrs – 12 hrs
Total: 5 hrs – 6 hrs
Only in 2-FEA
insufflated
Peak
Offset
Afterglow
Onset: 5 min – 15 minCome Up: 5 min – 10 minPeak: 30 min – 1 hrs
Effects
Safety
Interaction: 4F-EPH + 2-FEA
No direct interaction data available between these substances. This does not mean the combination is safe.
4F-EPH — Dangerous Interactions
2-FEA — Dangerous Interactions
Frequently Asked Questions
What is the difference between 4F-EPH and 2-FEA?
4F-EPH is classified as a Stimulants (Substituted phenidates) while 2-FEA is classified as a Entactogen, Stimulants (Substituted amphetamines). They share 19 effects in common, with 1 effects unique to 4F-EPH and 21 unique to 2-FEA.
Is it safe to combine 4F-EPH and 2-FEA?
There is no direct interaction data available for combining 4F-EPH and 2-FEA. This does not mean the combination is safe. Always exercise caution and research thoroughly.
Which is stronger, 4F-EPH or 2-FEA?
4F-EPH and 2-FEA 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.