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16,761 samples completed from 41 states. Last updated Friday, October 17, 2025.
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815380

From Roswell, New Mexico on September 26, 2025

Assumed to be fentanyl

This is a messy brew of 12 major substances:

  • acetaminophen
  • lidocaine
  • medetomidine
  • xylazine
  • despropionyl p-fluorofentanyl
  • 4-ANPP
  • despropionyl ortho-methylfentanyl
  • p-fluorofentanyl
  • fentanyl
  • ortho-methylfentanyl
  • bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate
  • phenethyl 4-ANPP

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.

Xylazine causes serious skin problems. These can happen anywhere on the body and don't heal quickly. And, xylazine can come on stronger than traditional dope and knock you out, so be mindful of your surroundings. It's best to avoid dope with xylazine. You might need medical attention to prevent long-term damage.

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: 6.35 = acetaminophen

Peak: 7.01 = lidocaine

Peak: 7.27 = medetomidine

Peak: 7.44 = xylazine

Peak: 9.02 = despropionyl p-fluorofentanyl

Peak: 9.02 = 4-ANPP

Peak: 9.27 = despropionyl ortho-methylfentanyl

Peak: 9.93 = p-fluorofentanyl

Peak: 10.12 = fentanyl

Peak: 10.44 = ortho-methylfentanyl

Peak: 12.02 = bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate

Peak: 13.37 = phenethyl 4-ANPP

Method(s): GCMS

Record for Sample 815380 last updated October 16, 2025