I was wondering if anyone happen to know if Xanax can cause tics. I have a dear friend that is attempted to wean off of Xanax after more than a decade of use. She was briefly successful, but due to some massive life changes decided to go back on the medication (she takes it 2 to 3X a day). In the last month, she has developed a tic or compulsion to lick her lips to the point of bleeding. She has seen her family doc and psych. Has an appointment with another psych soon, but is really getting (understandably!) desperate. I've read a fair number of studies and articles, but none seem to point to tics as a side effect of Xanax. Any ideas?