Morning santosha. Started Keppra in late 2000 or early 2001. It had just become legal and was very expensive. I was also taking diazepam. That had become legal around 1995, prior it was used only in hospitals. Operation was April 2006. The amount prior to operation was 1750mg/day after 3000mg/day and no diazepam. Toleration was the same before and after, only at 3000mg/day I could just fall asleep for a few minutes but I knew it was coming. Like I said before am at 1750mg/day today. About the brain, just remember that it is never perfect, what is? If your Dr wants you to maintain dosage do it. Your brain has to heal after operation and that takes time! If your Dr wants/thinks an operation is right for you do your research, ask questions and when you are satisfied do it. What we have learned about the brain in the last 40 years is more than all the years prior combined. Good luck, you will find your answers, just do the research.
Brad