I am in the midst of tapering off xanax. My PCP prescribed this medication, as well as Zoloft; 5 1/2 years ago. 3 mg xanax per day, 200 mg Zoloft per day. I have since been referred to a psychiatrist, and he upped the xanax to 4 mg a day. Now he wants me to taper off. I have started by dropping .50 , but I am finding it very difficult. Very nauseous, light headed, and rubbery legs. I am also having more severe panic than previously, and my depression is bad. Any input?