At a Glance
Dosage
oral
| Level | PMMA | 4-FA |
|---|---|---|
| Threshold | — mg | 40 mg |
| Light | — mg | 40–100 mg |
| Common | 100–120 mg | 100–130 mg |
| Strong | — mg | 130–150 mg |
| Heavy | — mg | 150 mg |
Duration
oral
PMMA
4-FA
oral
Peak
Offset
Afterglow
Onset: 45 min – 1.3 hrsCome Up: 30 min – 1.3 hrsPeak: 2.5 hrs – 3.5 hrsOffset: 2 hrs – 3 hrsAfterglow: 6 hrs – 12 hrs
Total: 5 hrs – 8 hrs
Effects
Safety
Interaction: PMMA + 4-FA
No direct interaction data available between these substances. This does not mean the combination is safe.
PMMA — Dangerous Interactions
4-FA — Dangerous Interactions
Frequently Asked Questions
What is the difference between PMMA and 4-FA?
PMMA is classified as a Entactogen (Amphetamine, Substituted amphetamines) while 4-FA is classified as a Entactogen, Stimulants (Substituted amphetamines). They share 13 effects in common, with 7 effects unique to PMMA and 24 unique to 4-FA.
Is it safe to combine PMMA and 4-FA?
There is no direct interaction data available for combining PMMA and 4-FA. This does not mean the combination is safe. Always exercise caution and research thoroughly.
Which is stronger, PMMA or 4-FA?
At common doses via oral, PMMA is typically dosed at 100–120 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.