3-FEA, a Entactogen, Stimulants, and 4-MMC, a Stimulant, Entactogen, are frequently compared by users looking to understand their relative effects, dosage profiles, and safety considerations. 3-FEA is classified as a Entactogen, Stimulants while 4-MMC is a Stimulant, Entactogen, meaning they approach altered states through different pharmacological mechanisms. They share 19 documented effects in common, with 20 effects unique to 3-FEA and 13 unique to 4-MMC. This side-by-side comparison covers dosage, duration, subjective effects, and safety to help you make informed decisions.
| Effects | 39 documented | 32 documented |
| Interaction | Caution | |
| Level | 3-FEA | 4-MMC |
|---|---|---|
| Threshold | 15 mg | 50 mg |
| Light | 20–35 mg | 75–100 mg |
| Common | 35–70 mg | 100–200 mg |
| Strong | 70–90 mg | 200–300 mg |
| Heavy | 90 mg | 300 mg |
| Level | 3-FEA | 4-MMC |
|---|---|---|
| Threshold | 15 mg | 5 mg |
| Light | 20–35 mg | 15–45 mg |
| Common | 35–50 mg | 45–80 mg |
| Strong | 50–60 mg | 80–125 mg |
| Heavy | 60 mg | 125 mg |
3-FEA
4-MMC
3-FEA
Increased cardiovascular strain and neurotoxicity risk
4-MMC
