← Back to all substances
4-MPM
Also known as: 4-mpm, 4-methylphenmetrazine
4-Methylphenmetrazine is an empathogen of the phenylmorpholine class that seems to have a very rapid tolerance build up.
Dosage
Insufflated
Common: 10-20mg
Light: 5-10mg
Strong: 20-25mg
Oral
Common: 15-25mg
Light: 5-15mg
Strong: 25-40mg.
Duration
Onset: undefined minutes
Duration: undefined hours
After effects: 1-8 hours
Timeline
After
1-8 hours
04h8h
Typical
Extended range
Avoid
Other stimulants.