No sooner than cocaine mixed with alcohol is highlighted in the UK press as a heart attack-inducing cocktail (Cocaethylene ) but another drug is reported to pose similar dangers. Street name = ‘Bubble’ / trade name = ‘mephedrone’ is a plant fertilizer that can cause severe nose bleeds, hallucinations, blood circulation problems, rashes, anxiety and paranoia, but - taken with alcohol – can create a toxic mixture that may result in death.