Study find nitazenes, which are up to 500 times stronger than heroin, can degrade significantly in portmortem blood samples
Deaths caused by a synthetic opioid that is hundreds of times stronger than heroin may have been underestimated by up to a third across the UK, according to research.
Nitazenes are a class of synthetic opioids that are extremely potent, and up to 500 times stronger than heroin. They were manufactured originally as a painkiller in the 1950s but their development was halted due to their extreme potencies resulting in a high risk of addiction.
