The US fentanyl epidemic shows little sign of abating.
More than 100,000 died in the US last year of an overdose – the majority of which were from synthetic opioids like fentanyl.
Up to 50 times stronger than heroin, it’s scarily easy to overdose when using fentanyl.
Newsnight’s correspondent in San Francisco, James Clayton, has been speaking to a former addict about how addiction took over his life – and how he nearly died.
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