Yes, I switched to Celexa especially after gaining over 150lbs. I have taken off 66lbs of it, but it has been hard. I had no side effects in switching. I love the Celexa, I tell everyone about it. I take 20mg, started at 60mg. Talk to your Dr. ask him about it. When I did he was more then happy to let me try it, that has been about 6 years now.
Good luck and remember do not be afraid to ask ?'s of your Dr. It is your body and you know it better then anyone.
Granny8