At a Glance
Dosage
insufflated
| Level | 4F-MPH | 3-FPM |
|---|---|---|
| Threshold | 5 mg | 5 mg |
| Light | 5–8 mg | 10–20 mg |
| Common | 8–14 mg | 20–35 mg |
| Strong | 14–20 mg | 35–50 mg |
| Heavy | 20 mg | — mg |
oral
| Level | 4F-MPH | 3-FPM |
|---|---|---|
| Threshold | 5 mg | 10 mg |
Duration
insufflated
4F-MPH
insufflated
Total: 3 hrs – 6 hrsPeak
Offset
Afterglow
Onset10 min – 30 min
Peak1 hrs – 2 hrs
Offset1 hrs – 2 hrs
Afterglow4 hrs – 8 hrs
3-FPM
Effects
Safety
Interaction: 4F-MPH + 3-FPM
No direct interaction data available between these substances. This does not mean the combination is safe.
4F-MPH — Dangerous Interactions
3-FPM — Dangerous Interactions
Frequently Asked Questions
What is the difference between 4F-MPH and 3-FPM?
4F-MPH is classified as a Stimulants (Substituted phenidates) while 3-FPM is classified as a Stimulants (Substituted amphetamines, Phenylmorpholine). They share 22 effects in common, with 17 effects unique to 4F-MPH and 12 unique to 3-FPM.
Is it safe to combine 4F-MPH and 3-FPM?
There is no direct interaction data available for combining 4F-MPH and 3-FPM. This does not mean the combination is safe. Always exercise caution and research thoroughly.
Which is stronger, 4F-MPH or 3-FPM?
At common doses via insufflated, 4F-MPH is typically dosed at 8–14 mg while 3-FPM is dosed at 20–35 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.