Nicorette Chewing Gum is an aid to help smokers give up. This Nicotine Replacement Therapy (NRT) helps to relieve withdrawal symptoms and cravings associated with stopping in intake of nicotine. ?The gum is sometimes used in combination with Nicorette Invisi 10mg and 15mg Patch for the treatment of nicotine dependence. ?The 2mg gum is for smokers of 20 cigarettes or less a day.