Xanax has a very short half life, which may be why she opted for the
ER. In my opinion, whether taking the
ER or the non-
ER xanax, if you take it daily you will become dependent on it, so I wouldn't worry too much about it. Again, just my opinion.
It sounds like the xanax is working well for you so far, I hope it continues to do so until you're ready to taper off of it.
Well wishes to you...