article_snippet: Ministers have already introduced bans on some former legal highs, including mephedrone - known as meow meow - NBOMe and Benzofury.
article_snippet: A ban on synthetic stimulant mephedrone came into force across the UK in 2010.
article_snippet: A ban on synthetic stimulant mephedrone is now a Class B substance, along with A ban on synthetic stimulant mephedrone associated compounds.