Student revived after using vape unknowingly laced with fentanyl Fentanyl Laced Vapes On The Rise: What To Look Out For Addiction Resource Health Alert: nitazenes, a class of highly potent synthetic opioids, are being detected in Missouri. They are appearing in counterfeit pills, powders and vapes often without users knowing. How dangerous are they? Have you ever heard reports about this before?, Some confiscated or illicit vape cartridges have tested positive for fentanyl or fentanyl related compounds. Reports from toxicology and law enforcement