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15,878 samples completed from 41 states. Last updated Friday, September 12, 2025.
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807621

From Hamilton, Ohio on August 13, 2025

Assumed to be fentanyl

This is a messy brew of 6 major substances:

  • medetomidine
  • 4-ANPP
  • ethyl 4-ANPP
  • fentanyl
  • phenethyl 4-ANPP
  • phenazolam

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 = white, powder

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

Major substances in graph:

Peak: 7.24 = medetomidine

Peak: 9.03 = 4-ANPP

Peak: 9.17 = ethyl 4-ANPP

Peak: 10.14 = fentanyl

Peak: 13.4 = phenethyl 4-ANPP

Peak: 13.53 = phenazolam

Method(s): GCMS

Record for Sample 807621 last updated September 12, 2025