Q: 44 year old male with history of seizure is admitted with breakthrough seizure and has been loaded with phenytoin. His regular dose has been increased. Since morning patient is complaining of vision problem. On examination he has opthalmoplegia. What is your concern?


Answer: Phenytoin overdose

One of the side effect of Phenytoin intoxication is ophthalmoparesis, also know as opthalmoplegia. This opthalmoplegia may take weeks to resolve.