"i have general anxiety and occasional bouts of high anxiety. i was taking .5 xanax 1-2x day not everyday only when i had the bouts of high anxiety.  i was on viibryd 10mg for a week then to 20mg and that&#039;s where i&#039;ve been for about a year.  after about 2-3 weeks of starting the viibryd i noticed i no longer needed the xanax. i have noticed no change in sex drive however i have noticed i get extremely sleepy if i&#039;m not actively doing something.. over the past 2 months i have slowly reduced to 10mg hoping to reduce the daytime sleepiness but i have noticed i am getting my bouts of high anxiety again so will end up going back to 20mg."