Opioids
N-Propionitrile Chlorphine
Street names: NPC, Chlorphine propionitrile
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Nitazene-family opioid analgesia and sedation
- High potency — fentanyl class
⚠Key risks
- Reported to UNODC from 8 countries in 2024 — one of the most widespread new nitazenes
- Narrow overdose window
- Standard opioid strips may not detect — lab confirmation needed
- Often mixed into heroin or counterfeit pill supplies unannounced
✚Overdose signs
- Slowed/stopped breathing
- Cyanosis
- Unresponsive to voice/pain
Category comparison — Opioids
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| N-Propionitrile Chlorphine | Not scheduled | Reported to UNODC from 8 countries in 2024 — one of the most widespread new nitazenes; Narrow overdose window | Contaminant/adulterant pricing — rarely sold openly by name |
| 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 N-Propionitrile Chlorphine look like?
White/off-white powder; identified in powders and pressed tablets
What are the signs of a N-Propionitrile Chlorphine overdose?
Slowed/stopped breathing; Cyanosis; Unresponsive to voice/pain Call emergency services immediately and give naloxone if available — it reverses opioid overdoses.
How addictive is it?
Reported to UNODC from 8 countries in 2024 — one of the most widespread new nitazenes 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.