Paxil actually works very well for anxiety (my sister is a pharmacist and I ama med tech/pharmacy tech.) It does however have alot of side effects (diarhhea is one but it wears off after your body adjusts.) and the added draw back of strong withdrawl symptoms should you need to go off. Other SSRI's have less side effects and withdrawl. Coincidentally my MD has also given me samples of Effexor. It seems to have fewer GI side effects..but can raise your blood pressure slightly. I am waiting to talk to my GI Dr on Friday before I decide to take it. I wish I could find more informtion specifically about SSRI's and GI problems...I will let you know if I find anything. Please all let us know of you take anything and if it helps or not....