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19,078 samples completed from 41 states. Last updated Monday, February 2, 2026.
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814891

From Paterson, New Jersey on January 15, 2026

Assumed to be crack

2 major substances detected:

  • medetomidine
  • fentanyl

And we also found traces of 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, powder

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

Major substances in graph:

Peak: 7.21 = medetomidine

Peak: 10.06 = fentanyl

Method(s): GCMS

Record for Sample 814891 last updated January 27, 2026