I was given xanax by my doctor for anxiety attacks which I started having due to perimenopause. My attacks were coming even in my sleep. I was taking 0.5 mg. prn. But I couldn't tell if my anxiety was becoming worse because I was dependent on the xanax or because of what caused it in the first place. I am convinced now that I have become dependent on the xanax. Ive tried not to take it, but I feel like Im going to die, or have a siezure or something. Went to see my doctor yesterday. Told her everything. She has put me on Pristiq 50 mg. I hope it helps. I've never been dependent on any drug!