I was taking zanax for 18 months, two to three daily of 1mg. Was never told by doctor regarding addictive qualities. Never been addicted to anything, athelete my entire life. Went back to prescribing doctor approx. 50 times during the 18 months with a variety of symptoms, major symptom body wide muscle twitching. After spending thrity thousand dollars out of pocket, the light finally came on, zanax was causing the problem. (doctor couldn't figure it out?) It's been 10 months off zanax, not taking any other meds, I stopped cold turkey. 10 moths later, still feel horrible; internal trembling, muscle twitching, fatigue, haed pressure. Can anyone with similiar situation please let me know if my brain will ever return to normal. I started taking zanax at the suggestion of my doctor due to my mom being diagnosed with lung cancer. This drug is evil!!