The survey, spanning over 5 years, contacted both smokers and former-smokers at two year intervals between 2001 and 2006, found that only one-fifth of those who had successfully quit had supported their attempt with the use of nicotine patches, gum, inhalers or nasal spray. The products made no positive difference to the chance anyone would stay away from tobacco, while heavily addicted smokers who used them without also getting professional counselling were most likely to relapse.

Last year, the federal government spent more than $9 million of taxpayer money on nicotine replacement patches after the Pharmaceutical Benefits Scheme subsidy was approved from February. Smokers received up to 12 weeks supply and must commit to counselling.