Smoking cessation aids are products conceived to help a person stop smoking by reducing the craving of nicotine and withdrawal symptoms. They are available in different forms such as gum, lozenges, patches, and chewing sticks, and are usually sold over-the-counter, though some others may be prescribed by doctors. Some popular brands are Nicorette which encompasses a range of products under the nicotine replacement therapy line. Nicotine gum is a smoking cessation drug available in the form of chewable gum. The drug gives a controlled amount of nicotine and thus prevents withdrawal symptoms such as urgency for smoking, irritability, etc. Among the major brands, the name Nicorette is the best known; it has multiple varieties & flavors as well as different strengths.