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H
Opioids

Heroin

Street names: Dope, H, Smack, Sugar brown, Brown, Junk

Heroin — White/off-white powder (US) or brown base powder ('sugar brown'); black tar (Mexico)

What it does

  • Rapid intense euphoria ('rush')
  • Warmth, heavy limbs
  • Pain relief, drowsiness ('nodding')

Key risks

  • Extremely addictive — physical dependence in weeks
  • Overdose: breathing slows or stops
  • Unknown strength + fentanyl contamination

Overdose signs

  • Unresponsive, pinpoint pupils
  • Breathing <8/min or gurgling
  • Blue/gray lips and fingernails

📋Quick facts

Also known asDope, H, Smack, Sugar brown, Brown, Junk
CategoryOpioids
Schedule / classSchedule I (US)
AppearanceWhite/off-white powder (US) or brown base powder ('sugar brown'); black tar (Mexico)
Street price~$10–$40 per bag; prices vary by region
Legal statusIllegal — Schedule I in the US; Class A (UK); controlled everywhere listed
Last updated2026-09-12
Sources: NIDA, DEA, EMCDDA

Category comparison — Opioids

SubstanceClassTop risksStreet price
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
Xylazine (Tranq)Not a controlled drug — veterinary anesthetic, adulterantNot an opioid — naloxone does NOT reverse it; it still kills breathing; Flesh-rotting wounds (tranq lesions) that lead to amputationSold as part of fentanyl/heroin bags
Street prices are regional estimates. Potency and cuts vary constantly.

?Frequently asked questions

What does Heroin look like?

White/off-white powder (US) or brown base powder ('sugar brown'); black tar (Mexico)

What are the signs of a Heroin overdose?

Unresponsive, pinpoint pupils; Breathing <8/min or gurgling; Blue/gray lips and fingernails Call emergency services immediately and give naloxone if available — it reverses opioid overdoses.

How addictive is it?

Extremely addictive — physical dependence in weeks 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.