815879
From Grand Traverse County, Michigan on April 8, 2026
Assumed to be heroin, fentanyl
This is a messy brew of 5 major substances:
- methamphetamine
- 1,3-Diacetin
- caffeine
- diphenhydramine
- lidocaine
But we found lots of contaminants too, with traces of acetaminophen + tetramethyl-4-AP + tetramethylnorfentanyl + fentanyl + 4-ANPP + quinine. Trace substances in small quantities are usually harmless, but can sometimes cause health problems. Unexpected sensations may be due to these.
There were just traces of fentanyl. This could have been contamination, like if drugs were stored in old bags. But since fentanyl is so potent you should be prepared. Consider getting fentanyl test strips online or from a harm reduction program if you weren't expecting it. Carry naloxone (Narcan) to reverse overdoses. Even traces of fentanyl could be a problem if you don't use opioids regularly. 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 = black, unknown texture
Need free supplies and advice to keep you safe? Find your nearest harm reduction program at harmreduction.org
Major substances in graph:
Peak: 4.11 = methamphetamine
Peak: 4.72 = 1,3-Diacetin
Peak: 7.01 = caffeine
Peak: 7.12 = diphenhydramine
Peak: 7.14 = lidocaine
Method(s): GCMS
Record for Sample 815879 last updated May 5, 2026