Cocaine is being contaminated with powerful opioids called nitazenes. Here’s why it’s a dangerous mix
- Written by Nicole Lee, Adjunct Professor at the National Drug Research Institute (Melbourne based), Curtin University
Farion_O/ShutterstockEarlier this month, drugs sold as cocaine in Melbourne were found to be contaminated with a powerful group of opioids, known as nitazenes.
These new synthetic drugs were also the suspected cause of four people being hospitalised in Sydney in May. And in April, nitazenes were found in drugs used by around 20 people who overdosed...

















