Opioids
Spirochlorphine (R-6890)
Street names: R-6890, Spiro chlorphine
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Long-acting nitazene opioid — sedation and euphoria lasting 8+ hours
- High potency, slow offset
⚠Key risks
- Detected in 5 countries in 2024 (UNODC EWA) — the 'long-legs' nitazene
- Duration outlasts naloxone — repeat dosing and hospital monitoring required
- Missed by routine screens
- Withdrawal is prolonged and severe
✚Overdose signs
- Respiratory depression persisting for hours
- Re-sedation
- Bradycardia
Category comparison — Opioids
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| Spirochlorphine (R-6890) | Not scheduled | Detected in 5 countries in 2024 (UNODC EWA) — the 'long-legs' nitazene; Duration outlasts naloxone — repeat dosing and hospital monitoring required | Adulterant 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 Spirochlorphine (R-6890) look like?
White crystalline powder; found in 'heroin' samples and counterfeit pills
What are the signs of a Spirochlorphine (R-6890) overdose?
Respiratory depression persisting for hours; Re-sedation; Bradycardia Call emergency services immediately and give naloxone if available — it reverses opioid overdoses.
How addictive is it?
Detected in 5 countries in 2024 (UNODC EWA) — the 'long-legs' nitazene 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.