D.J.
I was on Lexapro for quite awhile and I thought it was wonderful! My only problem with it is that I gained 10 pounds in about 3 months. (Definitely not due to a change in my diet, I can only blame it on the Lexapro) I was afraid that I would keep gaining, so I went off of it and on to Welbutrin, which is not supposed to have any effect on weight. Welbutrin does not work as well for me as Lexapro did. My sister is on Lexapro also and she never struggled with some of the side effects like I did, so I think everyone really is different.
I've never had experience with Meridia. Hope this helps!