Stimulants
4-CMC (Clephedrone)
Street names: 4-CMC, Clephedrone, CMC
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Stimulant: euphoria, energy, focus
⚠Key risks
- Suspected serotonin neurotoxicity (para-chloro like PCA)
- Cardiovascular strain
- Binge compulsion
✚Overdose signs
- Racing heart
- Agitation
- Overheating
📋Quick facts
Also known as4-CMC, Clephedrone, CMC
CategoryStimulants
Schedule / classControlled several EU; analog US
AppearanceWhite crystals/powder
Street price~$15–$35/g
Legal statusControlled DE/UK/NL; analogue US
Last updated2026-09-17
Sources: EMCDDA, NPS-AD
Category comparison — Stimulants
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| 4-CMC (Clephedrone) | Controlled several EU; analog US | Suspected serotonin neurotoxicity (para-chloro like PCA); Cardiovascular strain | ~$15–$35/g |
| 3-CMC / 4-CMC (clephedrone/chloromethcathinone) | Controlled in several EU states; analogue prosecutions | Suspected serotonin neurotoxicity (chlorine atom like para-chloroamphetamine); Cardiovascular strain | ~$15–$35 per gram |
Street prices are regional estimates. Potency and cuts vary constantly.
?Frequently asked questions
What does 4-CMC (Clephedrone) look like?
White crystals/powder
What are the signs of a 4-CMC (Clephedrone) overdose?
Racing heart; Agitation; Overheating Call emergency services immediately.
How addictive is it?
Suspected serotonin neurotoxicity (para-chloro like PCA) Dependence can develop with regular use.
🔗Sources & further reading
Facts on this page are compiled from these primary sources. External links open in a new tab.