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12,250 samples completed from 40 states. Last updated Wednesday, April 23, 2025.
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604942

From Asheville, North Carolina on March 28, 2025

Assumed to be heroin; fentanyl

4 major substances detected:

  • acetaminophen
  • lidocaine
  • 4-ANPP
  • fentanyl

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.

There are a lot of different substances in this sample. We don't know the harms that some of these can cause. Be careful and be prepared for unexpected reactions.

Looks = tan, powder, chunky

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

Major substances in graph:

Peak: 6.43 = acetaminophen

Peak: 7.18 = lidocaine

Peak: 9.25 = 4-ANPP

Peak: 10.44 = fentanyl

Method(s): GCMS

Record for Sample 604942 last updated April 23, 2025