Library
4-MPM
4-Methylphenmetrazine is an empathogen of the phenylmorpholine class that seems to have a very rapid tolerance build up.
Also known as: 4-metyylfenmetrazini, P-Metyylfenmetrazini, Para-metyylfenmetrazini, 4-Me-fenmetrazini
Classification
- Chemical: Phenylmorpholine
- Psychoactive: Entactogen
- Psychoactive: Stimulant
- Tag: Empathogen
- Tag: Habit-Forming
- Tag: Research-Chemical
- Tag: Tentative
Effects
- Stimulation
- Loss Of Appetite
- Dry Mouth
- Elevated Heart Rate
- Increased Heart Rate
- Insomnia
- Euphoria
- Talkativeness
- Empathy Enhancement
- Anxiety
- Irritability
- Motivation Enhancement
- Ringing
- Light Sensitivity
- Dehydration
- Increased Libido
- Vibrating Vision
- Open Eye Visuals
Routes of Administration
Insufflated
Dosage
- Common: 10-20 mg
- Light: 5-10 mg
- Strong: 20-25 mg
- Heavy: 90 mg+
- Threshold: 5 mg
Duration
- Onset: 0.08-0.25 h
- Peak: 0.5-1.5 h
- Offset: 1.5-2.5 h
- After Effects: 0.5-1.5 h
- Total Duration: 3-5 h
Oral
Dosage
- Common: 30 mg
- Light: 10-30 mg
- Strong: 70-120 mg
- Heavy: 120 mg+
- Threshold: 10 mg
Duration
- Onset: 0.33-0.66 h
- Peak: 1-2 h
- Offset: 2-3 h
- After Effects: 0.5-2 h
- Total Duration: 4-6 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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