Opioids
Desnitroclonitazene
Street names: Clonazene, Desnitro clonitazene
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Nitazene opioid — analgesia, sedation
- Potency between tramadol-class and fentanyl-class depending on sample
⚠Key risks
- First notified to the EU Early Warning System in 2024 (Belgium)
- Sold as a 'research chemical' with zero human safety data
- Can be converted into clonitazene-class compounds
- Standard drug panels miss it
✚Overdose signs
- Respiratory depression
- Unresponsiveness
- Bradycardia
Category comparison — Opioids
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| Desnitroclonitazene | Not scheduled | First notified to the EU Early Warning System in 2024 (Belgium); Sold as a 'research chemical' with zero human safety data | RC-market pricing |
| Heroin | Schedule I | Extremely addictive — physical dependence in weeks; Overdose: breathing slows or stops | ~$10–$40 per bag |
| Fentanyl | Schedule II | Respiratory depression; Addiction in days | ~$20–$40 per counterfeit pill |
| Fentanyl HCl (powder) | Schedule II / analogue prosecutions | Lab-purity powder is far stronger than street mixes; Weighing errors are fatal | ~$60–$120/gram wholesale equivalent |
| Acetylfentanyl | Schedule I | ~5–15× weaker than fentanyl but still deadly at gram-level mistakes; Frequent cause of cluster overdoses | ~$25–$60/g where found |
| Furanylfentanyl (Fu-F) | Schedule I | Linked to hundreds of fatal overdoses 2016–2018; Potency similar to fentanyl | ~$20–$50/g |
Street prices are regional estimates. Potency and cuts vary constantly.
?Frequently asked questions
What does Desnitroclonitazene look like?
White to off-white powder; seen in powders and tablets in Belgium/EU
What are the signs of a Desnitroclonitazene overdose?
Respiratory depression; Unresponsiveness; Bradycardia Call emergency services immediately and give naloxone if available — it reverses opioid overdoses.
How addictive is it?
First notified to the EU Early Warning System in 2024 (Belgium) 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.