The best thing to tell your friend is to be patient with med trials. It can take a while to find the right combo and doseage. The other thing I would tell her is to inquire about any med or med combo causing weight gain. Being a teen girl the weight gain will be hard to digest. My size 0 100 pound daughter gained over 40 pounds, size 12 in matter of months, it was more devasting to her than the bipolar. Lamictal is a newer medication and doesn't cause weight gain. THis medicaation has to upped slowly because it can cause a rash. I am taking it and after 2-3 weeks I am up to 100mg, started out at 25mg  
 
The other thing that is important is for your friend to have her own talk therapists. As a mother, you often forget to take care of yourself, but it is really important to keep you healthy so you can take care of your child.  
 
www.bpkids.org is a wonderful website that is parent run and much like this message board, you post and get a lot of answers and support from moms with children that have bp and other illnesses.  
 
The best book I read was The Bipolar CHild, by Papolos.  
Another one that Ifound helful is The Bipolar Survival Guide, by Miklowitz. And Bipolar for Dummies, by Fink.. tha is the black and yellow books, like windows for dummies etc. It is simple to understand and has tons of info. I looked for my books by using amazon and searched bipolar.  
 
The other advise I can give you is to find a psychiatrist who specializes in bipolar disorder in adolecsants. This can be frustrating but worth the time to find one. When I was looking that was my first question when calling. I went through 5-6 doctors before I found one who I trusted and liked. It is a process but worth it.  
 
If I can answer any more questions please ask.. You can also get my email off my profile and pass it along to your friend. Or you can write to me.  
 
It is a tough road but can be succesful.  
 
O and one more thing. Have her request in writing with the school for a testing for an IEP (special services) this child will qualify under emotional impairment and can be given special services to help her through school. It is anothe rprocess but can be done. My daughter gets help, like no timed test (causes great anxiety) can use the bathroom whenever as some medications make urination hard to control. Other things that are in the IEP are like won't be held back for absences. Also if the child is in a program out fo school ,she may qualify for a home bound teacher who comes out to the house, through the public school system. Another thing to look into. My daughter could only manage half days at the begingin of her med trial due to adjustments and Being tired etc. so we had a home bound. With the school thing, I can assist you in getting a student actovist.. they know all the laws and stuff, the one I used was free of charge and it helped me get my daughter the IEP I was turned down at first. SOmething to think of as some of these meds can cause cognitive dulling so the older they get with the class load in high school it is hard to keep up. Especially during depressive episodes.  
 
If I think more I will post again. This info is alot to digest so I will stop for now.  
 
Tammy