Opioids
Heroin, fentanyl, painkillers and the nitazenes — the deadliest category in the drug supply. Opioids suppress breathing. Most overdose deaths in the US, Canada and Europe now involve fentanyl or its analogues — often mixed into drugs the buyer never asked for.
Heroin
White/off-white powder (US) or brown base powder ('sugar brown'); black tar (Mexico)
Fentanyl
White powder, pressed pills, counterfeit oxycodone — often invisible when mixed into other drugs
Fentanyl HCl (powder)
Fine white crystalline powder, indistinguishable from other white powders
Acetylfentanyl
White/tan powder, sometimes sold as 'synthetic heroin' or pressed into pills
Furanylfentanyl (Fu-F)
White/yellowish powder or pressed tablets
Methoxyacetylfentanyl
White/off-white powder
Etonitazene
White/yellow/off-white powder, pills, or e-liquid for vaping
Isotodesnitazene
White/yellow powder, often mixed into heroin or counterfeit pills
Oxymorphone (Opana 40 mg)
Pink/octagonal ER tablets (Opana 40 mg); white IR tablets
Morphine 60 mg
Round ER tablets imprinted 60 (purple/orange by brand); oral solution; injectable ampoules
Hydromorphone (Dilaudid 8 mg)
Small triangular white tablets ('8mg triangles'); clear injectable liquid
Oxycodone (Roxicodone 30 mg)
Blue 30 mg IR tablets; also white pills with various imprints
OxyContin
Round ER tablets (OC imprint); reformulated 2010 to deter crushing
Codeine 30/500 mg (co-codamol)
White tablets (30 mg codeine / 500 mg paracetamol); purple/clear syrup
Hydrocodone 10/500 mg
White/oblong tablets imprinted Watson 540-style; capsules historically
Hydrocodone–Ibuprofen (Vicoprofen)
White oblong tablets (7.5 mg hydro / 200 mg ibuprofen)
Meperidine (Demerol)
White capsules (50/100 mg); clear injectable solution
Methadone
Orange/red diskettes (40 mg), liquid (cherry), tablets, injectable ampoules
Suboxone (buprenorphine/naloxone)
Orange sublingual films (2/0.5 mg, 8/2 mg) or hexagonal tablets
Subutex (buprenorphine)
White sublingual tablets (2 mg, 8 mg), hexagonal imprint
Fentanyl patches (Duragesic 12.5 mcg/hr)
Tan rectangular transdermal patches (12.5–100 mcg/hr), gel or matrix type
Xylazine (Tranq)
No street form of its own — found mixed into fentanyl/heroin (white/beige powder) or pills