###Human: Can Xanax cause depression, insomnia, and anxiety? ###Assistant: Hi. Yes, during withdrawal from Benzodiazepines, people do feel the problems you are facing currently. Yes, they are withdrawal symptoms. Sertraline was prescribed because your GP suspected depression. If you already took this medicine in past, you can again start it now. To come off of Xanax, it would be better if you tell your GP truth about it. He would taper it off gradually and stop it.