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Opioids

'Gray Death' (Mixed Opioid Combo)

Street names: Gray death, Grey death

'Gray Death' (Mixed Opioid Combo) — Chunky gray/gray-brown powder resembling concrete mix

What it does

  • Composite opioid high — heroin + fentanyl + carfentanil + U-47700 combinations

Key risks

  • Named for its appearance AND its kill rate — multiple overdoses per batch
  • Component drugs require escalating naloxone doses
  • Users don't know what's in it; dealers don't either
  • Skin-contact overdose risk for first responders

Overdose signs

  • Respiratory arrest
  • Multiple naloxone doses needed
  • Cyanosis
  • Cardiac arrest

📋Quick facts

Also known asGray death, Grey death
CategoryOpioids
Schedule / classMixture — components Schedule I/II
AppearanceChunky gray/gray-brown powder resembling concrete mix
Street priceSold as heroin/fentanyl — ~$10–$30 per bag
Legal statusComponents illegal; mixture prosecuted as trafficking
Last updated2026-09-17
Sources: DEA, NIDA, CDC

Category comparison — Opioids

SubstanceClassTop risksStreet price
'Gray Death' (Mixed Opioid Combo)Mixture — components Schedule I/IINamed for its appearance AND its kill rate — multiple overdoses per batch; Component drugs require escalating naloxone dosesSold as heroin/fentanyl — ~$10–$30 per bag
FentanylSchedule IIRespiratory depression; Addiction in days~$20–$40 per counterfeit pill
CarfentanilSchedule II10,000× morphine potency — 1–2 mg (a few granules) can be fatal to humans; Found mixed into street heroin/cocaine — mass-overdose clustersN/A — mass-casualty contaminant
HeroinSchedule IExtremely addictive — physical dependence in weeks; Overdose: breathing slows or stops~$10–$40 per bag
Street prices are regional estimates. Potency and cuts vary constantly.

?Frequently asked questions

What does 'Gray Death' (Mixed Opioid Combo) look like?

Chunky gray/gray-brown powder resembling concrete mix

What are the signs of a 'Gray Death' (Mixed Opioid Combo) overdose?

Respiratory arrest; Multiple naloxone doses needed; Cyanosis Call emergency services immediately and give naloxone if available — it reverses opioid overdoses.

How addictive is it?

Named for its appearance AND its kill rate — multiple overdoses per batch 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.