In 2020, only one fentanyl by-product was One of the ten NPS opioids recently claimed for the EU EWS (8). There has also been a significant reduction in fentanyl analogue positivity in toxicology casework (nine). Certainly, with fentanyl analogues and synthesis precursors being significantly controlled, we now notice a gradual change towards a whol… Read More

4-FA reacts with reagent testing to present a semi-exclusive array of colours which may be accustomed to assist its identification. Last colors produced by reagent assessmentsIntense headaches right after coming down from big doses have been reported. Even so, many end users report an absence of "comedown" or "crash", in its place noting a gradual … Read More