4F-MPH, a Stimulants, and 2-FEA, a Entactogen, Stimulants, are frequently compared by users looking to understand their relative effects, dosage profiles, and safety considerations. 4F-MPH is classified as a Stimulants while 2-FEA is a Entactogen, Stimulants, meaning they approach altered states through different pharmacological mechanisms. They share 36 documented effects in common, with 3 effects unique to 4F-MPH and 20 unique to 2-FEA. This side-by-side comparison covers dosage, duration, subjective effects, and safety to help you make informed decisions.
| Effects | 39 documented | 56 documented |
| Level | 4F-MPH | 2-FEA |
|---|---|---|
| Threshold | 5 mg | 15 mg |
| Light | 5–8 mg | 20–30 mg |
| Common | 8–14 mg | 30–40 mg |
| Strong | 14–20 mg | 40–60 mg |
| Heavy | 20 mg | 60 mg |
| Level | Dose |
|---|---|
| Threshold | 5 mg |
| Light | 5–10 mg |
| Common | 10–15 mg |
| Strong | 15–20 mg |
| Heavy | 20 mg |
4F-MPH
2-FEA
No direct interaction data available between these substances. This does not mean the combination is safe.