4-FMA
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Also known as 4-fluromethamphetamine, 4fma
A stimulant with some empathogenic properties, and analogue of Methamphetamine with similar effects. Reported to be less effective than 2-FMA and related compounds. Little is known about the pharmacological effects of this compound. Not to be confused with 4-FA, which has a different effect profile, despite similar potency.
Oral
Route dataTripSit
| Threshold | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| — | 50–75 mg | 75–125 mg | — | 125 mg+ |
0156.25 mg
LightCommonStrongHeavy
| Total | 3–5 hours |
|---|---|
| After-effects | 1–6 hours |
Plan when to take 4-FMA — see where onset, peak and comedown land on the clock
Plan a dose of 4-FMA
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Source: TripSit — 4-FMA ↗
Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.