Zonegran is an antiepileptic medication containing the active ingredient zonisamide. It is used to treat partial-onset seizures, either alone or in combination with other types of seizures. Zonisamide works by reducing abnormal electrical activity in the brain that leads to seizures. Zonegran is administered orally, in the form of capsules or oral suspension powder. The appropriate dosage is prescribed by a medical professional based on the patient’s age, seizure type and frequency, and individual response to treatment. It is important to strictly follow medical guidance regarding dosage, frequency, and duration of use.