For me, Lexapro didn't cause any weight gain, quite the contrary actually.. It decreased my appetite when I started it.

But that is a side effect, so you might or might not get it.

An another side effect Lexapro has is weight gain. It depends on the person with any anti anxiety/depression med, I think.

I think that most antidepressants are weight neutral.

Hope this shed at least some light on the question.

Katie