Keep cravings in check - Nicorette sugar free chewing gum actively fight cravings to help you quit smoking once and for all. Fights withdrawal symptoms. Nicorette gum relieves 7 withdrawal symptoms of quitting - cravings, irritability, low mood, restlessness, anxiety, poor concentration and increased appetite. Nicorette nicotine gum is a stop smoking aid that tastes great and allows you to actively control how much nicotine you use.