I have had 3 series of ECT treatments. The first time I probably only had about 12 treatments, just a few more the second time. With the third time, I started with 3 treatments a week for two weeks, once a week for quite a while, tapering slowly to once every four weeks for at least six months. The treatments started the end of May 2009 and ended the first week of October 2010. I feel very lucky as the treatments worked and I had very little memory loss. About 5 weeks after the last treatment I was under stress, became very anxious and then started slipping into depression. Since my meds were cut when I started ECT, we increased my Cymbalta from 30 mg to 90mg and I have regained stability for now. If needed, I can go back to ECT without regret.