A year ago, I had neck fusion surgery. Having developed Seizures 3 years prior I was taking Tegretol XR 600mg. The hospital was given that bottle. Two days after surgery, I became spsatic, I could not hold anything, I could not stand, I could not talk nor see. I was slipping into a coma. The hospital finally determined that they cased the "near death" experience by giving me Tegratol 600MG and in fact had overdosed me.

My question is does this happen a lot and if there may be long term effects from the incident. I spent three days in the ICU