Ecstasy is the name given to methylenedioxymethamphetamine (MDMA). Ecstasy is a derivative of the amphetamine group and has both stimulant and hallucinogenic properties. It is sometimes referred to as a psychedelic amphetamine.

Ecstasy does not always contain just MDMA. Ecstasy pills are often mixed with a variety of other substances including aspirin, caffeine and ketamine (a veterinary anaesthetic agent). Sometimes drugs containing no MDMA are sold as ecstasy. This makes it difficult for people to know what they are taking.
Common Names for Ecstasy:
- E.
- Es.
- XTC.
- Eccies.
- Pills.
- Biccies.