Clonazepam
"My PCP prescribed this after long term use of Paroxetine was not helping all of the time. I get panic attacks often. Vomiting, pacing, crying, and hyperventilating. Ugly stuff. She prescribed Clonazepam 0.5mg as needed. I was afraid to take it, I have an addictive personality and my siblings have abused benzos in the past. However, I truly take it as needed! I split all of the pills in half. If I take one half before I do something that I know usually triggers an attack, I'm good to go but I'm not usually THAT lucky. If I feel an attack  coming on, I take one half. I usually wait 15-30 minutes and take the second half ONLY IF NEEDED. 

I have come to find that this has been the best thing for my anxiety in conjunction with the Paroxetine."