Ill this affect my results on IP?
I'm on Zoloft, which is known to cause weight gain, and I have lost 36.4 lbs since Jan 26. In a recent article I read on the Today Show site, it noted that Prozac is a good alternative to other SSRI's that can cause weight gain. So, you shouldn't have any problems.
I'm on Celexa since August 2009 and it caused weight gain (about 25 lbs). I've started IP in January, it's working, and I continue to take Celexa. I've lost the weight that Celexa "gave" me within 11 weeks.