['tobacco use disorder']
['levomilnacipran', 'placebo']

        Inclusion Criteria:

          -  Be between 25 years old and 55 years old

          -  Smoke a minimum number of cigarettes per day

          -  Indicate motivation to quit smoking

        Exclusion Criteria:

          -  Current or history of medical or psychiatric conditions that could interfere with
             measures being studied or that could be affected by the study medication

          -  Use of medication that could interfere with measures to be studied or that could be
             expected to interact with levomilnacipran

          -  Are pregnant or breast feeding

        The investigators will evaluate if there are other reasons why someone may not be eligible
        to participate
      