> Ecstasy, known as MDMA
It's MDMA (the chemical compound 3,4-methylenedioxy-N-methylamphetamine) that's usually known as "Ecstasy", but many other chemicals are also sold as "Ecstasy" as well.
Very few people die from MDMA overdose, or even the effects of MDMA, but that doesn't always extend to the other chemicals sold as ecstasy[1] - I was at the Warehouse Project opening night last year where a guy died and several others were put in induced comas because they were supplied with PMA rather than MDMA[2]. Whether or not you agree with using psychoactive chemicals recreationally, any misinformation can be dangerous to the people who will use them. I feel this error should have been caught by the editor.
[1]: https://en.wikipedia.org/wiki/MDMA#Purity_and_dosage_of_.22e... [2]: http://www.bbc.co.uk/news/uk-england-manchester-24314997