By RNZ
A drug-checking organisation is warning partygoers about the danger of drugs being sold as something they are not.
Know Your Stuff deputy manager Jez Weston says there has been an increase in synthetic cathinone, also known as bath salts, being mis-sold as MDMA.
"Initially they feel a bit like MDMA, there's a bit of euphoria but that wears off in about an hour, leaving people just stimulated and agitated and tempted to take more," Weston said.
If people did re-dose, they could struggle to sleep for 24 to 48 hours, have head aches, stomach upsets, confusion and seizures, he said.