seizure prevention
"I took Lamictal for 7 years with no seizures and no side effects - wonderful medicine.  They switched me to generic in 2009, have had 2 seizures in 1 1/2 year - increased dosage, but blood levels inconsistent.  Neurologist swears it's not the generic, but has no explanation for why it's not keeping level.  Stay with the Lamictal if you can, it's wonderful."