Vape pen at Tennessee high school exposes 3 to fentanyl Tucson Police Warn of Fentanyl Laced Illegal Vape Cartridges 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? Amazon.com: Verifique Home User Fentanyl+ Multi Drug Detection Test Kit for Identification of Major Narcotics on Any Surface, Including Vape Pens, Pills, Powders and More (Box of 2) : Health & Household Lab finds fentanyl in spice seized from Brandon convenience store