Substance:4-MMC

4-MMC
Type	Substance
Category	Empathogen
Chemical Name	4-Methylmethcathinone
Aliases	4-MMC, Mephedrone, 4MMC, Meow Meow
ROA(s)	Oral, Insufflated
Drug Class(es)	Empathogen, Stimulant

Oral
Threshold	50–75 mg
Light	75–150 mg
Common	150–250 mg
Strong	250–350 mg
Heavy	350+ mg
Onset	15–45 min
Duration	2–4 hours
After Effects	2–6 hours
Insufflated
Threshold	15–40 mg
Light	40–80 mg
Common	80–140 mg
Strong	140–200 mg
Heavy	200+ mg
Onset	1–10 min
Duration	1.5–3 hours
Notes	Common binge pattern with frequent redoses.

4-MMC

4-MMC (mephedrone) is a synthetic cathinone with strong empathogenic and stimulant effects. It is known for euphoria, talkativeness, and a short duration that often encourages redosing, with a comedown that can feel harsh after binge use.

Reports

Experience reports in this archive that include 4-MMC:

• 4-MMC (Personal)
• Mushrooms + 4MMC (Personal)
• Alcohol + 4MMC (Personal)