How does nicorette (nicotine gum) gum work?

Replaces nicotine. The real problem with nicotine is the delivery device. Cigarettes, cigars and chewing tobacco all can cause serious health problems due to the other ingredients in tobacco. By switching to nicorette (nicotine gum) you are only getting nicotine to help reduce the craving for it. Over time you can break the habit of smoking and reduce your dependence on nicotine.