Synthetic Opioids Found in Vapes and THC Products Narcotics.com What Are Nitazenes? The Drug Stronger Than Fentanyl That Is Killing Hundreds Every Year WSJ More than 1200 vape vials laced with nitazene, a synthetic opioid 200 times more potent than morphine, were sold across Sydney, sparking Australia's first arrest over vapes spiked with the drug. Police More than 1200 vape vials laced with nitazene, a synthetic opioid 200 times more potent than morphine, were sold across Sydney, sparking Australia's first arrest over vapes spiked with the drug. Police Nitazenes kill. How to stay safe from an opioid overdose