All forms of nicotine replacement therapy effective for smoking cessation

There is high-quality evidence that all of the commercially available forms of NRT – including gum, transdermal patches, intranasal sprays and inhaled and oral preparations – are effective as part of a strategy to promote smoking cessation. They increase the rate of long‐term quitting by approximately 50% to 60%, regardless of setting. These conclusions apply to smokers who were motivated to quit. In pregnant women, evidence suggests NRT could increase the chance of quitting at the time of delivery. The relative effectiveness of NRT appears to be largely independent of the intensity of additional support provided to the individual. Provision of more intense levels of support, although beneficial in facilitating the likelihood of quitting, is not essential to the success of NRT.