Question: I am a 68 yr old female in good health, no mental issues, but have had chronic insomnia most of my adult life, not depressed and i am never tired either. Into wellness, eat an excellent diet and supplement with probiotics B, C D and others and exercise regularly. I have taking xanax only at night for sleep for about 25 years. Dose is usually only .25 every second day. In my 30's i took .5 at night for about 10 yrs straight. I wonder if there are any long term effects at this low dose? I can go off it completely for weeks and have no withdrawal. It really helps put me to sleep. Recently I read that taking benedryl for 4 yrs causes one to be more at risk for developing dementia. This concerns me as i usually alternate my xanax with Benedryl. My mind is very clear right now. Would long term xanax use have the same effect as Benedryl. I am hoping not. Should i stay on the xanax or get off of it or doesn't it matter.