Officials: Statewide Wastewater Testing Detected Nitazenes in 26 Missouri Schools Since January 2026
Last Updated: Monday March 30, 2026
(KSHB) Nitazenes, a highly potent class of synthetic opioids, were detected at 26 Missouri schools during a voluntary school wastewater monitoring program led by the Missouri Department of Public Safety.
The Missouri Department of Health and Senior Services said nitazenes have recently been identified in counterfeit pills, illicit powders, unregulated cannabis products and vape liquid, often without the user knowing.
Some nitazenes are over five to 10 times more potent than fentanyl, officials said.
“Nitazenes are a hidden killer,” DPS Director Mark James said. “Even a tiny amount of nitazenes can cause someone to stop breathing, and they’re increasingly being detected in counterfeit pills – but most people have never heard of them. Protect yourself: avoid using all illicit substances and only use medications obtained directly from a pharmacist with a valid prescription.”