Caffeine, a Stimulants, and 3-FEA, 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-FEA is a Entactogen, Stimulants, meaning they approach altered states through different pharmacological mechanisms. They share 25 documented effects in common, with 16 effects unique to Caffeine and 14 unique to 3-FEA. This side-by-side comparison covers dosage, duration, subjective effects, and safety to help you make informed decisions.
insufflatedoral |
| Effects | 41 documented | 39 documented |
| Interaction | Uncertain | |
| Level | Caffeine | 3-FEA |
|---|---|---|
| Threshold | 10 mg | 15 mg |
| Light | 20–50 mg | 20–35 mg |
| Common | 50–150 mg | 35–70 mg |
| Strong | 150–500 mg | 70–90 mg |
| Heavy | 500 mg | 90 mg |
| Level | Caffeine | 3-FEA |
|---|---|---|
| Threshold | 2.5 mg | 15 mg |
| Light | 10–25 mg | 20–35 mg |
| Common | 25–40 mg | 35–60 mg |
| Strong | 40–80 mg | 50–60 mg |
| Heavy | 80 mg | 60 mg |
| Level | Dose |
|---|---|
| Threshold | 25 mg |
| Light | 25–75 mg |
| Common | 75–125 mg |
| Strong | 125–175 mg |
| Heavy | 175 mg |
Caffeine
3-FEA
Caffeine
3-FEA