Quite a few people loose just fine on anti-depressents. I for one have lost 72 pounds. It might not effect your loss at all, it may slow it down a bit. You have not alot to loose, so you loss would be slower anyway than someone who has lots to loose.

For me it was: do I want to loose weight faster, or do I want to go nice a slow and not be a depressed person that no one (including myself) wants to be around?