Overview Efficacy of Varenicline in Ambivalent Smokers Status: Completed Trial end date: 2010-01-01 Target enrollment: Participant gender: Summary The purpose of this study is to test whether Varenicline can help ambivalent smokers (those who are interested in quitting at some point in the future but have no current plans to quit) to reduce their smoking and eventually quit. Phase: Phase 2 Details Lead Sponsor: University of Vermont Medical CenterCollaborator: PfizerTreatments: Varenicline