Canterbury Mornings

A recovered nitrous oxide addict says the gas is still being sold in Christchurch dairies.Laughing gas, also known as NOS, is banned for therapeutic use under the Medicines Act - but can still be found in food products, like whipped cream.Larissa Wright, who woke up paralysed in January after peak use of 160 canisters a day - told Chris Lynch it's still within easy reach.LISTEN ABOVE