Xanax bars are little white rectangles that contain four tiny pieces (with lines to be split if necessary). Some people take the whole bar, most people split them though. They can also be found in smaller dosages - small pills that I've only seen in small blue triangles and little tan ovals (the tan ovals can be split in half).
Xanies (as we call them here, at least) are meant to be anti-depressents and relieve both anxiety, panic and panic attacks, and help insomnia.
When taking them to get high, it's just an elated version of what it's meant for. Other than slight forgetfulness and slight disorientation at times (i.e. don't take them and drive and stuff) I don't believe they're much more harmful than when taking as prescribed (depending, of course, on how many she's popping at once).
The time you'd really have to worry is the other time kids use them - to come down from extreme uppers like aderol or coke. That can kill you. Mixing drugs is bad and even most druggies know that.
Are they addictive? Yes, but honestly Xanies have kind of a pathetic withdrawal. I used to be horrid - and out of everything I quit, quiting Xanies was like leaving behind cake. You want it, but you don't really go through any withdrawal symptoms. You may get a wee bet sweaty randomly for a day or two.
Out of personal experience - that withdrawal/siezure stuff is... well.. bull.
Drinking water always helps, though.
If your worried about your daughter I wouldn't be as worried - there are so many harder mainstream drugs that do vastly worse amounts of damage. Hydros, oxies, and heroine's big and in pill form now too.
I would also look into why she's popping them.
I started taking them because I have nervous issues and small panic attacks but no insurance and so no doctor to ask for help, no money for therapy and all that, and who wants to admit to being nervous and scared of everything anyway?
Maybe she has some issues she's afraid or ashamed to admit to, and is taking them to honestly feel better. Perhaps she isn't truly abusing them.
I'd talk to her before getting 'professional help' because then, she's going to look at it as you attacking her before she's had any chance to defend herself.
I can't really give you any advice other than trying to be understanding and supportive about it, but I hope I at least gave you a better perspective on the whole thing and calmed your nerves a bit.
Feel free to get back to me if I can help you on anything else.
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Honest Answer from Ex-Pillhead 
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