Madeleine Finlay interviews social affairs correspondent Robert Booth about the concerning increase in fatal overdoses caused by a class of synthetic opioids known as nitazenes, which were originally created in the 1950s. Additionally, she speaks with Dr Joseph D’Orazio, an expert in toxicology and addiction, about the emergence of xylazine, a tranquilizer, in large quantities in the illegal drug market in the US and its recent appearance in toxicology reports in the UK.

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Source: theguardian.com