Open-Label Treatment With Duloxetine Hydrochloride Once-Daily Dosing for Evaluation of Stabilization Dose in Patients With Major Depression

The purposes of this study are to determine: The safety of duloxetine and any side effects that might be associated with it. Whether duloxetine can help patients with major depression. The safety associated with switching from a medication you may be taking for depression to taking duloxetine. It is possible that information collected during this study will be analyzed by the sponsor in the future to evaluate duloxetine for other possible uses or for other medical or scientific purposes other than those currently proposed.