Study Evaluating Potential Interaction Between SAM-531 And Gemfibrozil When Co-Administered

Inclusion Criteria: * Body mass index in the range of 18 to 30 kg/m2 and body weight greater than 50 kg. * Healthy as determined by the investigator on the basis of medical history, physical examination findings, clinical laboratory test results, vital sign measurements, and digital 12-lead ECG readings. Exclusion Criteria: * Presence or history of any disorder that may prevent the successful completion of the study. * Any significant cardiovascular, hepatic, renal, respiratory, gastrointestinal (GI), endocrine, immunologic, dermatologic, hematologic, neurologic, or psychiatric disease.