I thought this was interesting. It seems the anti-depressant Cipramil can help compulsive shoppers:
http://www.cbc.ca/storyview/MSN/2003/07/28/shoppingpill_030728
I read this story because I thought I used to be a compulsive shopper. But they mention people buying 2000 wrenches, and 55 cameras. That makes my shopping binges look trivial.