Parents and the National Poisons Centre are concerned that lollies being sold in blister packaging will confuse children into thinking prescription medicines are sweets.
Choco 4 is sold throughout New Zealand in foil blister packs, something parents are calling irresponsible.
"It's something we certainly don't like to see," said Dr Wayne Temple, director of the poisons centre in Dunedin.
"It's not something that we can regulate - we would have to talk to the Ministry of Health or call the company [distributing the sweets] and say, 'You know, it's not a very good product that you've got here.'
"Any foodstuff that looks like medicine or medicine that looks like food is a big no-no."