822837
From Bronx, New York on October 2, 2026
Assumed to be fentanyl
This is a messy brew of 9 major substances:
- erythritol
- phenacetin
- caffeine
- lidocaine
- medetomidine
- promethazine
- tianeptine metabolite
- 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, fine, powder
Need free supplies and advice to keep you safe? Find your nearest harm reduction program at harmreduction.org
Major substances in graph:
Peak: 4.17 = erythritol
Peak: 6.343 = phenacetin
Peak: 6.94 = caffeine
Peak: 7.078 = lidocaine
Peak: 7.311 = medetomidine
Peak: 8.499 = promethazine
Peak: 9.037 = tianeptine metabolite
Peak: 9.107 = 4-ANPP
Peak: 10.239 = fentanyl
Method(s): GCMS
Record for Sample 822837 last updated October 27, 2026