I had previously been on Prozac which actually helped with my elimination, but caused loose stools and digestive rumbling at higher dosages. My doc needed me at 60-80 mgs to help with my obsessions and compulsions, but I couldn't deal with the increased digestive problems. So, he put me on Zoloft, gradually increasing the dosage. At 100 mgs, I am so constipated and gassy. He wants me to increase it to 200 mgs eventually. I don't tolerate being constipated well at all. Does anyone else have this problem? I thought Zoloft would have caused more diarrhea than constipation, which I prefer. Is anyone on any other SSRI antidepressants that are not constipating? Thanks for any input.