Prozac has the least reported weight gain of the ssris and is the easiest to quit taking, so it's not a bad place to start if you decide to go the ssri route. Lexapro would be the second least likely to cause weight gain. But of course, it's very individual.
Thanks for your comments, I really appreciate it.
Paxiled is right. Also Wellbutrin doesn't affect serotonin. It will block the reuptake of dopamine and norepinephrine. That makes it a very stimulating antidepressant.
Most serotonin receptors antagonists like H1-H2 will unfortunately cause weight gain.
What you can do is to talk to your doctor about a soft SSRI like Zoloft. Zoloft in the literature is not linked with a lot of weight gain. One of the few SSRI not linked with weight gain.
M4
Wellbutrin is a stimulating anti-depressant, not usually used when anxiety is the primary problem.