At a Glance
Dosage
oral
| Level | 2-FA | 3-FA |
|---|---|---|
| Threshold | 5 mg | 10 mg |
| Light | 15–30 mg | 20–30 mg |
| Common | 30–50 mg | 30–50 mg |
| Strong | 50–60 mg | 50–70 mg |
| Heavy | 60 mg | 70 mg |
Duration
oral
2-FA
oral
Total: 2 hrs – 4 hrsPeak
Offset
Afterglow
Onset15 min – 30 min
Come Up15 min – 30 min
Peak1 hrs – 2 hrs
Effects
Shared Effects6
Safety
Interaction: 2-FA + 3-FA
No direct interaction data available between these substances. This does not mean the combination is safe.
2-FA — Dangerous Interactions
3-FA — Dangerous Interactions
Frequently Asked Questions
What is the difference between 2-FA and 3-FA?
2-FA is classified as a Stimulants (Substituted amphetamines) while 3-FA is classified as a Stimulants (Amphetamine, Substituted amphetamines). They share 6 effects in common, with 6 effects unique to 2-FA and 6 unique to 3-FA.
Is it safe to combine 2-FA and 3-FA?
There is no direct interaction data available for combining 2-FA and 3-FA. This does not mean the combination is safe. Always exercise caution and research thoroughly.
Which is stronger, 2-FA or 3-FA?
At common doses via oral, 2-FA is typically dosed at 30–50 mg while 3-FA is dosed at 30–50 mg. However, "stronger" depends on context — potency, subjective intensity, and duration all factor in. These substances have different pharmacological profiles and comparing raw potency is not straightforward.