Overdose or emergency? Call now Hotlines · US 911 · UK 999 · EU 112 · AU 000 · IN 112 · 988 (US crisis) Hotlines
N
Opioids

N-Desethyl Protonitazene

Street names: Desethyl proto, Norprotonitazene

⚡What it does

  • Protonitazene metabolite/analogue — active opioid
  • Potency near fentanyl class

⚠Key risks

  • Notified to EU EWS 2024 — detected as both a metabolite and a marketed RC
  • Presence complicates toxicology: 'protonitazene' deaths may involve this more potent variant
  • No human safety data
  • Survives some immunoassays

✚Overdose signs

  • Respiratory depression
  • Deep sedation
  • Bradycardia + hypotension

Category comparison — Opioids

SubstanceClassTop risksStreet price
N-Desethyl ProtonitazeneNot scheduledNotified to EU EWS 2024 — detected as both a metabolite and a marketed RC; Presence complicates toxicology: 'protonitazene' deaths may involve this more potent variantRC-market pricing
HeroinSchedule IExtremely addictive — physical dependence in weeks; Overdose: breathing slows or stops~$10–$40 per bag
FentanylSchedule IIRespiratory depression; Addiction in days~$20–$40 per counterfeit pill
Fentanyl HCl (powder)Schedule II / analogue prosecutionsLab-purity powder is far stronger than street mixes; Weighing errors are fatal~$60–$120/gram wholesale equivalent
AcetylfentanylSchedule 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 ILinked 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-Desethyl Protonitazene look like?

Off-white powder; identified in post-mortem and seizure samples

What are the signs of a N-Desethyl Protonitazene overdose?

Respiratory depression; Deep sedation; Bradycardia + hypotension Call emergency services immediately and give naloxone if available — it reverses opioid overdoses.

How addictive is it?

Notified to EU EWS 2024 — detected as both a metabolite and a marketed RC 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.