There is no doubt that some new, fancy and expensive anti-epileptic drugs (AEDs) have been developed and marketed. It seems like neurologists actually prefer to use these new drugs over the older drugs that have had decades of use.
These new drugs can include sodium valproate (Depakote), lamotrigine (Lamictal), carbamazepine (Tegratol), levetiracetam (Keppra) or topiramate (Topamax). Compare these with some of the older mainstays like phenytoin (Dilantin).
These drugs are also being used increasingly to treat migraines and bipolar depression.