PMA

para-Methoxyamphetamine (also known as 4-methoxyamphetamine, 4-MeOA, inaccurately as 4-MA (which should be reserved for 4-MA (4-MeA) instead) and more commonly as PMA) is a potent hallucinogen substance of the amphetamine class. PMA belongs to a family of substances known as the substituted amphetamines. However, unlike other substituted amphetamines, PMA does not produce stimulant or entactogen effects, nor euphoria. It is not taken on its own but is instead found as an ingredient in tablets of "Ecstasy" as a false substitute for MDMA.

PMA molecular structure diagram from the DrugsPRO substance library.

Also known as: 4-μεθοξυαμφεταμίνη, 4-μα, παρα-μεθοξυαμφεταμίνη, 4-μεθοξυαμφεταμίνη, 4-μα

Classification

Chemical: Amphetamine
Psychoactive: Entactogen
Psychoactive: Psychedelic
Psychoactive: Stimulant
Tag: Hallucinogen
Tag: Substituted amphetamine
Tag: Tentative

Effects

Stimulation
Nausea
Vasoconstriction Cold Extremities
Mydriasis
Teeth Grinding
Jaw Tension
Anxiety
Apprehension
Agitation
Confusion
Talkativeness
Alertness Enhancement
Open Eye Visuals
Light Sensitivity
Tracers
Brightened Color
Closedopen Eye Visuals
Enhanced Tactile Sensation

Routes of Administration

Oral

Dosage

Threshold: 2–5 mg
Common: 40-60 mg
Light: 20-40 mg
Heavy: 60 mg
Strong: 60 mg

Duration

Onset: 0.75-1.5 h
Peak: 2-6 h
Offset: 6-14 h
After Effects: 12-24 h
Total Duration: 6-24 h

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.

Links

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PMA