Popular party drug "meow meow", or mephedrone, has been linked to more than a hundred deaths in Britain over the last two years.
Mephedrone was banned last year but has quickly replaced ecstasy and cocaine as the country's "favorite party drug". The drug has been implicated in the suicide of 20 people.
The Advisory Council on the Misuse of Drugs has called on for greater regulation of "legal highs", drugs which are legal and display effects similar to banned drugs.
The council's chairman, Professor Les Iversen said that many non-drug users are using it as they believe them to be safe just because they have not been banned. "Users are playing a game of Russian roulette. They are buying substances marked as research chemicals. The implication is that you should do the research on yourself to find out whether they're safe or not. This is a totally uncontrolled, unregulated market", Professor Iversen said.