Patients with a primary diagnosis other than MDD.

Patients with a history of schizophrenia, schizoaffective disorder, bipolar disorder or dementia.

Patients with a history of brief depressive episodes lasting less than 8 weeks.

Patients receiving formal psychotherapy within 12 weeks of study.

Patients who are suicidal.

Patients who have received electroconvulsive therapy or transcranial magnetic stimulation within 6 months prior to screening.

Patients with a history or seizure disorders.

Depression Study In Elderly Patients