Are you sure the lexapro reduction isn't to blame? When my pdoc reduced my lexapro dosage from 10mg to 5mg, I became very depressed. Then when I tried to go off it altogether, I felt even more depressed.

At 5mg, it didn't get rid of my depression, but things certainly got worse when I went off it. So just because it may not appear to have helped with depression, it doesn't mean it isn't helping at all. It may be helping despite that.

Just my 2 cents.