Nitazenes Drug Science Deadly nitazene vapes: First Australian arrest made in Sydney The Australian Animal tranquilliser found in cannabis vapes and illicit sedatives in UK Drugs The Guardian 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