I am taking Zoloft for panic disoder. I have been taking it for one month. I started at 12.5mg for one week, then 25mg and two weeks at 50mg. I feel it has increased my baseline anxiety and panic attack frequency. I have tried Prozac and viibryd already unsucessfully, I stopped after only a few days due to increased anxiety. Benzos are the only thing that have been effective. I have taken .5mg per night of kolonopin and .5mg of Xanax as needed. Has anyone else experienced this? How long did it take for you to see any benefit? I am wondering if SSRIs are simply not for me or if I should stick it out?