"i&#039;ve just switched to klonopin from being on xanax for almost 11 years. it worked wonders for me. i never abused it and take it responsibly, but i did develop a tolerance to it after so long on it. one of the best things about xanax is that it kicks in pretty quickly, which is a must for panic attacks. it&#039;s very hard for me to let xanax go because it&#039;s the only thing that really worked for my anxiety and panic attacks."