MDMA: Not Always as safe as you think it is...
It's worth noting early on that what is sold as ecstasy is not always MDMA. Occasionally it's MDA, a more classically psychedelic substance which leads to a longer and stronger high than the user anticipated. More commonly it's a third phenethylamine, MDEA (3,4-methylenedioxyethylamphetamine, also known as MDE), the effects of which generally only last a couple of hours.
Other ecstasy pills may contain a huge range of substances, including ketamine and added amphetamine (speed), while some have no illegal drug content whatsoever. There have been persistent rumours of pills containing heroin, but there's absolutely no evidence to suggest this is anything more than one of the many myths surrounding MDMA. For a start, it would make no economic sense. Nevertheless, the fact that MDMA can be cut with anything from LSD to caffeine means users can never be sure of what they're getting.
For help in identifying the purity of your MDMA - or whether or not you're substance is MDMA or something else, make use of the MDMA tests available on the column to the right of this post.
MDMA's popularity makes it a particularly good target for goons who cut drugs. Be well and play safe... Buy your MDMA Purity TestKitPlus and test before you ingest!