4-MTA
Aliases: Mta, Flatliners, Golden eagle, 4-methylthioamphetamine
Categories
Summary
4-MTA is an extremely dangerous substance with a high fatality rate. It acts as both a potent serotonin releaser and MAO-A inhibitor, creating severe risk of fatal serotonin syndrome and hyperthermia. The slow onset (30-90 minutes) leads to high redosing risk and accidental overdose. Street tablets typically contained 100-140mg. Multiple deaths were reported in Europe in the late 1990s.
Dose Information
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | After Effects |
|---|---|---|---|---|---|
| Oral | 30-90 min | 1-2 hrs | 2-8 hrs | 4-12 hrs | 24 hrs |
Tolerance
Build-up
develops over days to weeks of regular use
Reset
3–7 days for acute; 1–3 weeks for full reset
Effects
Positive
- Stimulation
Negative
- Nausea
- Headache
- Tachycardia
- Increased heart rate
- Pupil dilation
- Teeth grinding
- Hyperthermia
- Muscle rigidity
- Decreased appetite
Positive
- Empathy
- Euphoria
- Sociability enhancement
- Wakefulness
- Analysis enhancement
Negative
- Agitation
- Confusion
- Anxiety
- Thought acceleration
- Time distortion
Positive
- Tactile enhancement
- Increased music appreciation
- Color enhancement
- Increased libido
- Tracers
- Pattern recognition enhancement
Negative
- Light sensitivity
- Dehydration
- Appetite suppression
- Increase sexuality