The last study visit will be 2 weeks after the follow-up visit. This visit will consist of a study debriefing with the patient. At this visit the investigators will discontinue the study drug. The investigators will also arrange for the data monitoring personnel to un-blind the study at this time. No data will be collected at this visit. The participants will be informed of whether or not they were on the study drug or placebo. If a patient in the study drug group wishes to remain on Duloxetine, the patients will be advised to discuss it with their personal healthcare provider.