At a Glance
Dosage
oral
| Level | MDAI | 4-FA |
|---|---|---|
| Threshold | 40 mg | 40 mg |
| Light | 40–100 mg | 40–100 mg |
| Common | 100–175 mg | 100–130 mg |
| Strong | 175–300 mg | 130–150 mg |
| Heavy | 300 mg | 150 mg |
Duration
oral
MDAI
oral
Come Up
Peak
Offset
Onset20 min – 40 min
Come Up30 min – 1 hrs
Peak2 hrs – 2.5 hrs
Offset1 hrs – 2 hrs
4-FA
oral
Total: 5 hrs – 8 hrsEffects
Safety
Interaction: MDAI + 4-FA
No direct interaction data available between these substances. This does not mean the combination is safe.
MDAI — Dangerous Interactions
4-FA — Dangerous Interactions
Frequently Asked Questions
What is the difference between MDAI and 4-FA?
MDAI is classified as a Entactogen (Aminoindane) while 4-FA is classified as a Entactogen, Stimulants (Substituted amphetamines). They share 29 effects in common, with 11 effects unique to MDAI and 26 unique to 4-FA.
Is it safe to combine MDAI and 4-FA?
There is no direct interaction data available for combining MDAI and 4-FA. This does not mean the combination is safe. Always exercise caution and research thoroughly.
Which is stronger, MDAI or 4-FA?
At common doses via oral, MDAI is typically dosed at 100–175 mg while 4-FA is dosed at 100–130 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.