Table 1.

Inclusion and Exclusion Criteria

Inclusion Criteria	Exclusion Criteria
Smoking at least 15 cigarettes per day for the past 3 years Motivated to quit smoking in the the next month	Current DSM-IV Axis I disorder Psychoactive substance abuse or dependence (excluding nicotine dependence) within the past 6 months
Made at least one serious quit attempt in the past 10 years, but unable to quit for more than 72 hours	Current use of psychotropic medication A history of a significant medical condition Current use of pharmacotherapy for smoking cessation or other tobacco products