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What is 4MTA or AMT?

4MTA is a Class A controlled drug. It is a derivative of amphetamine and has similar effects to ecstasy. Penalties for possession are up to seven years in prison and/or an unlimited fine. Supply holds penalties of up to life in prison and/or an unlimited fine.

It has been associated with six deaths since it was first identified in Europe in 1997, and is thought to be responsible for at least 4 deaths in the UK, sometimes in conjunction with other drugs.

It is often sold as ‘ecstasy’ or ‘Flatliners’

See also our AMT page

DrugWatch AMT Factsheet (PDF)