A 15-year-old girl collapsed with respiratory arrest after laking ''ec
stasy'' at a ''dance party''. She presented to hospital with hyponatra
emia and cerebral oedema and later died We postulate that ingestion of
large amounts of water contributed io the hyponatraemia. Advice to th
ose using ecstasy at dance par?ies should be modified 50 suggest moder
ate fluid intake only and to emphasise the need to seek prompt medical
attention for non-resolving symptoms.