Caffeine, a Stimulants, and 3-FMA, a Entactogen, Stimulants, are frequently compared by users looking to understand their relative effects, dosage profiles, and safety considerations. Caffeine 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 28 effects unique to Caffeine and 3 unique to 3-FMA. This side-by-side comparison covers dosage, duration, subjective effects, and safety to help you make informed decisions.
oral |
| Effects | 30 documented | 5 documented |
| Interaction | Caution | |
| Level | Caffeine | 3-FMA |
|---|---|---|
| Threshold | 10 mg | 5 mg |
| Light | 20–50 mg | 10–20 mg |
| Common | 50–150 mg | 20–35 mg |
| Strong | 150–500 mg | 35–50 mg |
| Heavy | 500 mg | 50 mg |
| Level | Dose |
|---|---|
| Threshold | 2.5 mg |
| Light | 10–25 mg |
| Common | 25–40 mg |
| Strong | 40–80 mg |
| Heavy | 80 mg |
| Level | Dose |
|---|---|
| Threshold | 25 mg |
| Light | 25–75 mg |
| Common | 75–125 mg |
| Strong | 125–175 mg |
| Heavy | 175 mg |
Caffeine
Total: 2 hrs – 5 hrs
3-FMA
Total: 3 hrs – 7 hrs
Total: 1 hrs – 2.5 hrs
Increased cardiovascular strain and neurotoxicity risk
Total: 45 min – 1.2 hrs