818812
From King County, Washington on April 20, 2026
Assumed to be fentanyl
2 major substances detected:
- acetaminophen
- fentanyl
But we found lots of contaminants too, with traces of phenethyl 4-ANPP + 4-ANPP + medetomidine + erythritol. Trace substances in small quantities are usually harmless, but can sometimes cause health problems. Unexpected sensations may be due to these.
Fentanyl is potent and the amount changes by batch. If you weren't expecting it, consider getting test strips online or from a harm reduction program. Carry naloxone (Narcan) to reverse overdoses. Don't use alone so someone can help if you go out.
Looks = white, chunky, powder
Need free supplies and advice to keep you safe? Find your nearest harm reduction program at harmreduction.org
Major substances in graph:
Peak: 6.39 = acetaminophen
Peak: 10.4 = fentanyl
Method(s): GCMS
Record for Sample 818812 last updated April 30, 2026