Heading out this weekend with Mandy or Molly?
If that's a yes, remember if you're taking MDMA you should sip no more than a pint of water or non-alcoholic drink every hour.
Drinking too much water can be dangerous. This is because ecstasy can use the body to release a hormone which stops it making urine. If you drink too quickly you might affect your body's salt balance, which can be as deadly as not drinking enough water.
MDMA also affects your body's temperature control. Dancing for too long periods in a hot atmosphere, like a club, increases the chances of overheating and dehydration. Users should take regular breaks from the dance floor to cool down and watch out for any mates who are on it - as they might not realise they're in danger of overheating or getting dehydrated.
Get yourself over to the full MDMA page in the A-Z and check out more info on the effects and risks of taking MDMA, plus more answers to questions like, how long does MDMA last, what does MDMA look like and what will happen to you if you get caught with it.