It's a name you've probably never heard: nitazenes. These synthetic opioids are being found in counterfeit pills, powders and vapes. Nitazenes are 5 to 10 times more potent than fentanyl. Even a Nitazenes Alcohol and Drug Foundation A dangerous new class of synthetic opioid is spreading 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