What is mephedrone?

Mephedrone has been made illegal with a ban coming into force today (16 April).

It means anyone caught with it could be sent to prison. Police have already said they'll be tragetting dealers.

What is mephedrone?

What's the legal situation?

What else is it known as?

Is it anything to do with another drug called methadone?

What are the intended effects of taking it?

And the side effects?

How safe is it? Any long term dangers?