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4-FMA

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Class
Dose
Duration

3 sources

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EntactogenStimulantSubstituted amphetamines

Also known as 4-FMA

Addiction potential
moderately addictive with a high potential for abuse
Toxicity
exact toxic dosage is unknown
Tolerance
full tolerance develops with prolonged and repeated use; half after 3 - 7 days; baseline after 1 - 2 weeks
Cross-tolerance
dopamine, stimulant

Oral

Route dataPsychonautWiki

Dose
WeakerStronger
ThresholdLightCommonStrongHeavy
10 mg25–50 mg50–75 mg100–125 mg125 mg+
0156.25 mg
LightCommonStrongHeavy
Duration
ShorterLonger
Onset20–40 minutes
Come-up20–40 minutes
Peak2–5 hours
Offset1–2 hours
Total4–8 hours
After-effects3–12 hours
OnsetCome-upPeakOffset

Dangerous interactions

TramadolaMTMAOIs
Plan when to take 4-FMA — see where onset, peak and comedown land on the clock

Source: PsychonautWiki — 4-FMA ↗

Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.