I think everyone is different. I have two neighbors taking 600mg twice per day or 3 times per day They never have problems and love it. I was taking 300mg once per day. After going off the medication very slowly, a month later I had a seizure. I have no prior history of seizures. While on gabapentin I began to have a constant twitching in my left eye, elbow and behind my left knee. I do not know the seizure was related but I remember the pharmacist told me it could happen. I thought a month later I was fine but he said even a month later because by stopping the gabapentin it had lowered my threshold and along with other factors like stress it was more than I could handle and very well could have been the cause of my seizure. Best bet is to take good care of yourself get good nutrition, sleep and manage stress for the best results. Good Luck and God Bless!