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). Its history of use is unknown, but it has appeared more frequently in the 2000s and 2010s. It is generally less potent than PMA.
PMMA molecular structure diagram from the DrugsPRO substance library.
Also known as: 4-mma, Methyl-ma, 4-Methyl-Methamphetamine
Classification
Chemical: Amphetamine
Psychoactive: Entactogen
Psychoactive: Psychedelic
Psychoactive: Stimulant
Tag: Substituted amphetamine
Effects
Increased Heart Rate
Stimulation
Insomnia
Pupil Dilation
Nausea
Restlessness
Talkativeness
Alertness Enhancement
Euphoria
Anxiety
Confusion
Wakefulness
Light Sensitivity
Open Eye Visuals
Tactile Enhancement
Tracers
Brightened Color
Closedopen Eye Visuals
Routes of Administration
Oral
Dosage
Common: 100-120 mg
Duration
No data available for this section yet.
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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PMMA - przewodnik po substancji DrugsPRO
PMMA: 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