I haven't seen this drug mentioned anywhere on these forums anywhere and I definitely think it's worth mentioning. Mephedrone, known on the streets as M-CAT or Meow Meow, is a drug that has become extremely popular in the UK. When it first became popular it was legal and was a substance used in plant fertilizer. M-CAT is usually snorted, although it can also be consumed orally and, according to police reports, people have started resorting to what they call the 'crocodil' technique (taken from 'krokodil') - by mixing Mephedrone with petrol in order to allow for injecting, which is known to cause necrosis. Only very few users in the UK have injected M-CAT, most choose to snort it instead and the drug became popular because it showed no signs of neurotoxicity. Despite that fact, some heavy users of Mephedrone have experienced delusions, hallucinations and psychotic episodes.