Vape pens laced with synthetic opioids is the latest overdose threat Northern District of West Virginia U.S. Attorney warns of vaping dangers United States Department of Justice NWPrevention Northwestern Prevention Collaborative Drug laced vapes pose a serious and growing public health threat. Attractive flavours and packaging can hide dangerous substances such as ketamine, fentanyl, heroin, methamphetamine, THC and synthetic opioids. Even small amounts can Study Shows Big Rise in Teen Vaping This Year The New York Times A New Front in the Opioid Crisis: Fentanyl Laced Vape Pens