Zonisep 100 Capsule contains Zonisamide 100 mg, an anticonvulsant medication primarily indicated for the management of partial seizures in adults and pediatric patients. Zonisamide exerts its antiepileptic effects by blocking voltage-dependent sodium and T-type calcium channels, thereby stabilizing neuronal membranes and suppressing abnormal electrical activity in the brain. This medication is also utilized as adjunctive therapy in refractory epilepsy cases where monotherapy is insufficient. Zonisep 100 Capsule is administered orally, with dosage individualized based on patient response and tolerability. Common adverse effects may include dizziness, somnolence, headache, anorexia, and gastrointestinal disturbances; severe reactions such as metabolic acidosis, hypersensitivity, or nephrolithiasis are rare but warrant immediate medical attention. Caution is advised in patients with renal impairment, sulfonamide allergy, or a history of kidney stones. Regular monitoring of renal function and serum bicarbonate levels is recommended during prolonged therapy. Zonisep 100 Capsule should be used under strict medical supervision, with gradual dose adjustments to minimize withdrawal seizures upon discontinuation. This product should not be used during pregnancy or lactation unless clearly indicated. Patients are advised to avoid activities requiring mental alertness until they understand the drug’s effects on their cognitive and motor functions.