Peganone (generic: ethotoin) is a prescription medication used to treat epilepsy. Peganone belongs to a group of drugs called anticonvulsants. It works by affecting the electrical system of the brain to stop the spread of abnormal brain activity which leads to seizures.

This medication comes in tablet form. It is taken 4 to 6 times daily after meals.

Common side effects of Peganone are nausea, vomiting, tiredness, and rash.