Sydney's top doctor raises alarm after vapers develop opioid addiction Stuff 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 NSW Police Force's Video on X Deadly nitazene vapes: First Australian arrest made in Sydney The Australian Nitazenes: New synthetic opioid threat in Missouri Springfield Daily Citizen Nitazenes Forward Leeds