Mary
                    
                    
                    
                    
                    
                    
                    
                        
                        
                        I was also prescribed this; I went from 1 to 3 a day over a period of time.  I dont really know if it helps my pain, but I experienced the same effects that you have....I  couldnt handle 3 a day so I am taking 1 at night....I know dilantin which is used for seizures can damage your liver over a period of time so I am very leery of taking this drug.  I plan to discuss this with my doctor on my next visit.