What Is Nitazenes Addiction Abbeycare RACGP GPs warned amid 'worrying spike' in nitazenes Missouri health officials warn nitazenes, potent synthetic opioids, are hard to detect Missouri health officials warn nitazenes, potent synthetic opioids, are hard to detect Animal tranquilliser found in cannabis vapes and illicit sedatives in UK Drugs The Guardian 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