2-FA, a Stimulants, and 3-FMA, a Entactogen, Stimulants, are frequently compared by users looking to understand their relative effects, dosage profiles, and safety considerations. 2-FA is classified as a Stimulants while 3-FMA is a Entactogen, Stimulants, meaning they approach altered states through different pharmacological mechanisms. They share 2 documented effects in common, with 6 effects unique to 2-FA and 3 unique to 3-FMA. This side-by-side comparison covers dosage, duration, subjective effects, and safety to help you make informed decisions.
| Caution |
| Level | 2-FA | 3-FMA |
|---|---|---|
| Threshold | 5 mg | 5 mg |
| Light | 15–30 mg | 10–20 mg |
| Common | 30–50 mg | 20–35 mg |
| Strong | 50–60 mg | 35–50 mg |
| Heavy | 60 mg | 50 mg |
2-FA
Total: 2 hrs – 4 hrs
3-FMA
Total: 3 hrs – 7 hrs
Increased cardiovascular strain and neurotoxicity risk