The purpose of this study is to assess safety, tolerability and pharmacokinetics after a single and repeated oral doses of TC-5214 (S-mecamylamine) in healthy male Japanese subjects.

Inclusion Criteria:

• Japanese Healthy male ≥20 and ≤55 years old inclusive with suitable veins for cannulation or repeated venipuncture
• Have a body mass index (BMI) of ≥18 and ≤27 kg/m2 and weigh at least 50 kg

Exclusion Criteria:

• History of any clinically significant medical or neurologic disease or disorder which, in the opinion of the investigator and sponsor, may either put the subject at risk because of participation in the study, or influence the results of the subject's
• History of psychiatric disorders
• Any clinically significant illness, medical/surgical procedure or trauma within 4 weeks of the first administration of investigational product.