3-Fluoromethamphetamine
Aliases: 3-fma, 3fma
Summary
3-FMA is a research chemical stimulant with entactogenic properties, characterized as a serotonin-dominant triple monoamine releaser. It produces effects lying between functional stimulation (like 2-FMA) and euphoric entactogenesis (like 4-FMA). The substance has an extremely short history of human use and unknown long-term toxicity profile.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 10-20mg | 20-35mg | 35-50mg | 50mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 20-60 min | 30-60 min | 2-4 hrs | 1-3 hrs | 3.8-9 hrs |
| Insufflated | 20-40 minutes | - | - | - | 20-40 min |
Effect Profile
Scores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Empathogen
5.4
Moderate+
5/10
Strong euphoria with moderate stimulation, mild sensory enhancement, low empathy
Empathy / Social Openness
×3
2
increased sociability
Euphoria / Mood Elevation
×2
10
physical euphoria
cognitive euphoria
euphoria
mood lift
Stimulation
×1
7
stimulation
wakefulness
teeth grinding
increased heart rate
Sensory Enhancement
×1
5
tactile enhancement
increased libido
Stimulant
6.6
Strong+
7/10
Strong euphoria, anxiety/jitters, and focus with mild stimulation
Stimulation / Energy
×3
5
stimulation
wakefulness
Euphoria / Mood Lift
×2
10
physical euphoria
cognitive euphoria
euphoria
mood lift
motivation enhancement
Focus / Productivity
×2
9
focus enhancement
analysis enhancement
motivation enhancement
thought acceleration
Anxiety / Jitters
×1
10
anxiety
increased heart rate
teeth grinding
bruxism
sweating
Based on reports from:
Tolerance
Build-up
develops over days to weeks of regular use
Reset
3–7 days for acute; 1–3 weeks for full reset
Tolerance Decay
Full tolerance
1d
Half tolerance
12d
Baseline
~21d
Effects
Positive
- Stimulation
- Physical euphoria
- Increased energy/alertness
Negative
- Increased heart rate
- Increased perspiration
- Teeth grinding
- Weight loss
- Sweating
- Bruxism
- Decreased need for sleep
- Decreased appetite
- Disturbed sleep patterns
- Itchiness
Positive
- Cognitive euphoria
- Focus enhancement
- Motivation enhancement
- Wakefulness
- Anxiety suppression
- Analysis enhancement
- Euphoria
- Increased sociability
- Mood lift
Negative
- Compulsive redosing
- Aggressiveness
- Depression
- Anxiety
- Irritability
- Cognitive fatigue
- Motivation depression
- Thought acceleration
- Time distortion
- Excessive talking
- Moodiness
- Focus intensification
Positive
- Increased music appreciation
- Tactile enhancement
- Increased libido
- Pattern recognition enhancement
Negative
- Appetite suppression
- Dehydration
- Increased sexuality
- Visual and auditory hallucinations
- Tactile intensification
- Drifting
Combinations
3-Fluoromethamphetamine's nerd page
Pharmacology, chemical data, effect profiles, and more
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