I think pdoc said the generic is called celexa or something like that?

Lexapro is working really, really well for me, but it is a bit on the expensive side, so I asked pdoc about the generic. He gave me a few samples of it, and told me to try it out. He said there's a bit of the difference between the two, though. So I was wondering if anyone else had any experience with the generic versus the real thing?