This Habitrol Gum 2mg is indicated for smokers of 20 or less cigarettes a day and will help you to give up smoking by alleviating the unpleasant symptoms associated with nicotine withdrawal. These symptoms can include anxiety, irritability, headaches, sweating, and mood swings. These withdrawal symptoms are often a disincentive to quit smoking. When you chew Habitrol Gum, small amounts of nicotine become released and are absorbed through the lining of the mouth. This provides the smoker with a controlled way to satisfy the body's craving for nicotine.