Step 1 Nicotine Gum
When giving up smoking it is advisable to chew higher strength nicotine gum at the start. All gum in this category has 4mg of nicotine, which is best suited to those who regularly smoked 20 or more cigarettes a day.
Step 2 Nicotine Gum
Gum with a nicotine strength of 2mg is suitable for those who smoke/smoked around 10 - 20 cigarettes a day.