This is one of those chicken and egg things... I was prescribed Xanax when I was super stressed and having panic attacks, shed couple of months later (prob bc of stress and bc) and then I wondered if xanax could be involved. I really don't think so. Of all the side effects I've read about Xanax, hairloss seems a pretty rare on and I don't experience any others except drowsiness (which I like, and I only ever take it at night to help me relax/sleep). It seems like people who need xanax in the first place are probably very stressed and that's more likely to cause the hairloss if it coincides! I also take such a low dose (.5), and only do it when I need it (more lately!). It helps me sleep so I don't want to get rid of it if I don't have to. Anyone else occasionally take Xanax? I think it's kind of a life saver sometimes!