Canberra’s pill testing service CanTEST has found N-pyrrolidino protonitazene (NPP) in brown granular powder presented for testing.

It’s the first time the synthetic opioid — thought to be 25 times stronger than fentanyl — has been detected in the ACT.

CanTEST has issued a red alert community notice warning NPP carries a high risk of fatal overdose and there is no safe level of use.