Synthetic opioids linked to spate of overdose deaths found in wastewater across Australia

Detection of powerful nitazenes in samples from 60 sites a red flag' amid surging use to lace street drugs

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Synthetic opioids a thousand times stronger than morphine and an animal sedative used to lace street drugs have been detected in Australia's wastewater.

The discovery has been described as a red flag" and comes as the deadly class of synthetic opioids - nitazines - claims dozens of lives in Australia.

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