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17,825 samples completed from 41 states. Last updated Friday, December 5, 2025.
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814262

From Seattle, Washington on October 31, 2025

Assumed to be fentanyl

3 major substances detected:

  • lidocaine
  • 4-ANPP
  • fentanyl

And we also found traces of ethyl 4-ANPP + phenethyl 4-ANPP. 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, fine, powder, rock

Need free supplies and advice to keep you safe? Find your nearest harm reduction program at harmreduction.org

Major substances in graph:

Peak: 6.99 = lidocaine

Peak: 9.01 = 4-ANPP

Peak: 10.1 = fentanyl

Method(s): GCMS

Record for Sample 814262 last updated November 18, 2025