Causes, Nature and Toxicology of Fentanyl-Analogues Associated Fatalities: A Systematic Review of Case Reports and Case Series.

J Pain Res · 2021 · PMC8403021 · PMID 34466028

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an increasing trendno p-value reported

Outside the US, there is also an increasing trend in the prevalence of opioid including fentanyl use and associated harm in Europe. 21 , 22 In 2017, 1300 new synthetic opioids (NSOs) were seized by law enforcement, 72% of which were fentanyl derivatives. 23 In 2018, fake Xanax and OxyContin tablets were found to contain fentanyls in Denmark and Sw

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