Nicotine is one of the most widely abused substances in the United States. Nicotine replacement therapy (NRT) is currently an effective treatment for nicotine dependence; however, even with NRT most people fail at quitting smoking after their first attempt. Modafinil is a promising drug that may be useful in treating nicotine dependent individuals. The purpose of this study is to evaluate the safety of the combination of modafinil and NRT in treating nicotine dependent adolescent smokers.