I have tried 3 ssris'(with no benefit and bad side effects). The 2 most powerful benzos are Xanax and Klonopin, which help me greatly. Klonopin has a half life of around 33hrs for most people. And xanaxs' half life is around 11hrs. I feel that for me the benzos are nothing like ssris!!! Watch out, they(benzos) can add to your depression, I have heard. So maybe adding an anti-d that works for you would be of benefit....if you can find one. The only one that works for me Emsam(maoi patch). Good Luck!!!