By definition, patients who respond to antidepressant treatment show s
ignificant improvements in most, if not all, of their depressive sympt
oms. We assessed the patterns of change in depressed outpatients treat
ed openly with fluoxetine 20 mg/day for 8 weeks. We studied 62 depress
ed outpatients with major depressive disorder who showed full response
following fluoxetine treatment. Analysis of the data revealed that th
e symptoms that tended to improve relatively early during treatment we
re suicidal ideation, excessive guilt, and lack of appetite. Our tenta
tive conclusion from this pilot study was that symptom improvement ten
ds to occur in both cognitive and neurovegetative areas early in treat
ment as well as later.