I'm not sure if it's actually call Breakthrough Anxiety but does anyone have extreme anxiety once or twice a day even when you're on Xanax XR. I'm currently taking 2mg Immediate Release tablets 3x daily. I've also taken 3mg Xanax XR but I would have breakthrough anxiety 2 to 3 times a day for about 2 hours for no reason. I was wondering if I switched to 3mg Xanax Xr and take my regular 2 mg when needed for breakthrough anxiety if that will work. Anyone ever thought of this or tied this? I'm going to talk to my doctor about it next time a see him. I know that the max does of Xanax is 10mg So I'm going to ask him if I can change my xanax to 3mg Xanax XR and then also Take 2mg Immediate Release 3 times a day(a total of 11mg which I dont think insurance will have a problem with).