PMMA
Aliases: 4-mma, Methyl-ma
Summary
para-Methoxymethamphetamine (also known as 4-methoxymethamphetamine, 4-MeOMA, inaccurately as "4-MMA" (which should instead be reserved for 4-MMA (4-MeMA) instead) and more commonly as PMMA) is a highly dangerous and toxic synthetic substance of the amphetamine class that is closely related to PMA. Like PMA, it is known for producing extremely dangerous, life-threatening side effects. At lower dosages, its effects are somewhat different from PMA, with reduced tendency to cause severe hyperthermia while producing more entactogenic effects that can be mistaken for MDMA (although at higher dosages it does have the same risk as PMA).
Perspectives
“One hour into it, my pulse was up over 100, and I was compulsively yawning. There was some eye muscle disturbance, a little like the physical side of MDMA, but there was none of its central effects. But all the hints of the cardiovascular are there. By the fourth hour, I am pretty much back to baseline, but the yawning is still very much part of it. I might repeat this, at the same level, but with continuous close monitoring of the body.”
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | - | 100-120mg | - | - |
Effect Profile
1 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong euphoria with moderate stimulation, mild sensory enhancement
Strong euphoria and anxiety/jitters with moderate stimulation and focus
Tolerance
Tolerance Decay
Effects
- Stimulation
- Physical euphoria
- Increased heart rate
- Vasoconstriction
- Pupil dilation
- Teeth grinding
- Increased perspiration
- Nausea
- Insomnia
- Decreased appetite
- Alertness enhancement
- Wakefulness
- Euphoria
- Analysis enhancement
- Cognitive euphoria
- Motivation enhancement
- Anxiety
- Talkativeness
- Time distortion
- Thought acceleration
- Increased music appreciation
- Tactile enhancement
- Increased libido
- Pattern recognition enhancement
- Light sensitivity
- Appetite suppression
- Dehydration
- Disinhibition
- Tactile intensification
- Drifting
Combinations
PiHKAL / TiHKAL
“One hour into it, my pulse was up over 100, and I was compulsively yawning. There was some eye muscle disturbance, a little like the physical side of MDMA, but there was none of its central effects. But all the hints of the cardiovascular are there. By the fourth hour, I am pretty much back to baseline, but the yawning is still very much part of it. I might repeat this, at the same level, but with continuous close monitoring of the body.”