820121
From Chicago, Illinois on May 21, 2026
Unclear what it was before the lab
2 major substances detected:
- diphenhydramine
- fentanyl
And we also found traces of cocaine + 4-ANPP. Trace substances in small quantities are usually harmless but can sometimes cause health problems. Unexpected sensations may be due to these. The trace designation indicates the conclusive identification of the substance at a relatively low abundance compared to the sample's primary component(s). A substance is designated as "trace" when the peak height is less than 5% of the height of the most abundant peak detected in the sample.
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: 7.09 = diphenhydramine
Peak: 10.32 = fentanyl
Method(s): GCMS
Record for Sample 820121 last updated July 8, 2026