At a Glance
Dosage
oral
| Level | MDPV | 4-FA |
|---|---|---|
| Threshold | 2 mg | 40 mg |
| Light | 4–8 mg | 40–100 mg |
| Common | 8–14 mg | 100–130 mg |
| Strong | 14–25 mg | 130–150 mg |
| Heavy | 25 mg | 150 mg |
Duration
oral
MDPV
oral
Total: 2 hrs – 7 hrsAfterglow
Onset15 min – 30 min
Peak1 hrs – 4 hrs
Offset30 min – 2 hrs
Afterglow2 hrs – 48 hrs
4-FA
Effects
Safety
Interaction: MDPV + 4-FA
No direct interaction data available between these substances. This does not mean the combination is safe.
MDPV — Dangerous Interactions
4-FA — Dangerous Interactions
Frequently Asked Questions
What is the difference between MDPV and 4-FA?
MDPV is classified as a Entactogen, Stimulants (MDxx, Substituted cathinones, Substituted pyrrolidines) while 4-FA is classified as a Entactogen, Stimulants (Substituted amphetamines). They share 8 effects in common, with 6 effects unique to MDPV and 47 unique to 4-FA.
Is it safe to combine MDPV and 4-FA?
There is no direct interaction data available for combining MDPV and 4-FA. This does not mean the combination is safe. Always exercise caution and research thoroughly.
Which is stronger, MDPV or 4-FA?
At common doses via oral, MDPV is typically dosed at 8–14 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.