Have a look at http://efa.org or another medications directory, and
speak to your **Pharmacist for a website about the type of Tegretol
she's using (liquid or pills?).
 I'm not a Dr., but a 3-year old should not be put on Tegretol and I
don't know why she was (since I don't know the history anyway), but
Tegretol has potential to damage calcium in bones and teeth in *some
people, it initially requires close monitoring, so your earlier post
should have been signal to the Dr. to change or **Slowly remove it and
try something else, and she's not as olde as many of us to start
with... (50+).
  Since she's still growing and bones/ teeth developing, *I don't
understand why that would be the med. of choice as an earlier poster
suggested, and because of my comments wrt. Calcium potential* problems.
.
  Dilantin is also much older (1930), better studied and *cheaper, so
if she were able to use it, you'd both benefit from it (in health and
$$).  It probably also has many less potential side effects for someone
so young (kids have faster metabolism than us 'olde people'-- flushing
blood levels of a medication faster, versus what I do).  That faster
metabolism alone could make keeping a stable level of eg. Tegretol
(CR?)  at a suitable level to give her the type of control that she
deserves, and as she got older, she'd probably need increases in pills
as she went....
  *I'd rather have to take increased doses of Dilantin than Tegretol
if it were up to me, because of a **withdrawal effect (that can cause
szrs.), that's more troublesome with *Tegretol than Dilantin, if you
were e.g. to miss some doses periodically (or if she did if she was
away on school trips, sleep-overs etc. ).   Tegretol likes a nice
*constant, consistent dose level that's appropriate for body weight,
metabolism, and the person taking it.   At *that level (and with above
concerns I listed wrt. children), it works well for my Complex Partial
(formerly called Temporal Lobe) types of szrs.      G./

Dear Infected Applez:
I was diagnosed with epilepsy after I graduated from college, however, my
neurologist deduced that it was caused by hydrocephalus that developed since
early on in life, because in order for the hydrocephalus to develop to such
a level without me being in a coma (or worse), it would have had to progress
veeeery slowly.
Dilantin has just been around for so long that it is the "stock" first try
drug.  It's also inexpensive :)))  A comparison:  My dilantin off of
insurance costs $24/ mo.   My Topamax costs $3000 /mo.
Currently I am in my third month of VNS therapy, and my neurologist seems
pleased with the results.  We might try adjusting the medications next month
if things continue going this well.  The worst thing I have experienced so
far with the VNS therapy is an involuntary cough maybe five times this month
and a slight tingle in my throat that feels like a bit of food that hasn't
been swallowed.  Big... deal.
However, I want to remind people that apart from the epilepsy and
hydrocephalus, I am 100% healthy -- I don't smoke, drink, I have 129
cholesterol, etc.
I do find that that I am sleeping better and my dreams have become more
vivid.