Fentanyl in Vapes: Is It Real, How to Tell & What the Risks Are Student revived after using vape unknowingly laced with fentanyl Fentanyl found in unregulated vape cartridges in other states. 'Just a matter of time' before it comes to Utah 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? Fentanyl Found in Confiscated Vape Cartridges