In 2020, just one fentanyl by-product was among the 10 NPS opioids freshly claimed into the EU EWS (eight). There has also been a sizable reduction in fentanyl analogue positivity in toxicology casework (9). Certainly, with fentanyl analogues and synthesis precursors becoming more and more controlled, we now notice a https://chemicalglobe.com/product-tag/metonitazene-for-sale/