2-FDCK, or 2-Fluorodeschloroketamine, is similar to ketamine, but much stronger – and the effects can last two to three times as long.
The chemical was spotted by drug-testing organisation The Loop in a club in Durham – which found ‘multiple samples’.
The drug is a ‘new psychoactive substance’ (NPS), a chemical derivative similar to those sold as legal highs – and often made abroad in illicit labs and bought online by dealers.
The new chemical is much stronger than ketamine (Getty)
The organisation said, ‘Tested by The Loop in Durham, UK.