But unlike some other drugs like marijuana, heroin and cocaine, ecstasy doesn't come from a plant. Instead it's manufactured illegally from a number of different chemicals. For example, someone taking hallucinogens, may see a coffee cup move, or think the pattern on the wallpaper is moving. It's usually swallowed as a small white or yellow tablet in different shapes or sizes. Some people, however, inject ecstasy.
Effects vary depending on the drug's ingredients and the person taking it.
They include feeling happy, confident and affectionate. Some people have died following a bad reaction to ecstasy. Although deaths are not common, it's difficult to predict who is at risk from this drug. Ecstasy users should drink 500ml of water each hour when dancing or moving around, and 250ml each hour if not dancing. Drinking too much - it's important not to drink too much water in one go as some deaths have occurred when excess fluid affects the brain, causing a coma.