Overview Role of Metabolites in Nicotine Dependence (1) - 1 Status: Completed Trial end date: 2001-12-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine the effects of cotinine with or without a transdermal nicotine replacement on tobacco withdrawal symptoms. Phase: Phase 2 Details Lead Sponsor: National Institute on Drug Abuse (NIDA)Collaborators: University of MinnesotaUniversity of Minnesota - Clinical and Translational Science InstituteTreatments: Nicotine