mine uses lamictal and its been a godsend and she is just under 13. we are in the usa. life isnt perfect, but there has been a dramatic difference with little side effects. in fact, we are titrating up another 100mg for a total of 300 mg, it also allowed us to use focalin to address adhd symptoms and we see excellent results from that as well. its also been a slow, ongoing process to figure it all out.
but that all being said, its actually an excellent train of thought to get yours off of all medications if she has been on them long term. you say she started medications at 7? thats pre-hormonal. and teenaged hormones are a game changer in the psychiatric world. what worked at 7 can be very different that what works at 16.
and if you read here enough, you'll realize that very often, a diagnosis given at a young age morphs into different ones as they get older, so its conceivable you arent even treating the right thing, Know what I mean??
in my opinion, its a great idea to *start fresh*, particularly since she is in a php right now. it would be a good plan to clear her system and then deal with whatever symptoms are there.
at this point, what might the downside *be*? clearly, what she's doing isnt working for her, and i'm a firm believer that we not only need to make one change at a time, we also need to be mindful to figure out the least amount of medications/dosages--i think kids in particular can be just overmedicated if its not addressed in a very systematic and documented way.
and you have the bonus of a second "set of eyes" right now with her program...they may pick up on things you wouldnt at home....because teasing out symptoms is HARD.
i'd also suggest you keep some kind of a log if you dont already--changes, sleep issues, irritibility, whatever. i do a very simple calendar (i LOVE the "moms busy day" desktop calendar--each day has two boxes to write in--one i use for my actual calendar, the second i use strictly for difficult child 2--its very brief, sometimes a word or two, always includes medication changes, sometimes includes a weight, its nothing elaborate or formal--it can actually say "punished" or "happy" or "PITA all day")
but it helps show a pattern. it also helps show specific triggers. and its easy for me to do, which is probably the most important part--i found true mood charts difficult to use with mine.
hope that helps.