Zenoxa OD 300 Tablet SR contains Oxcarbazepine 300 mg as its active ingredient and is formulated as a sustained-release (SR) tablet to provide prolonged therapeutic effects. Oxcarbazepine is an anticonvulsant and mood-stabilizing agent primarily indicated for the management of partial seizures in adults and children aged 4 years and above. It functions by stabilizing hyperexcited neural membranes, inhibiting repetitive neuronal firing, and reducing synaptic impulse propagation via blockade of voltage-sensitive sodium channels. This mechanism helps to control seizure activity and prevent epileptic episodes. Zenoxa OD 300 Tablet SR is designed for once-daily dosing, improving patient compliance and maintaining steady plasma drug concentrations. It is also utilized as adjunctive therapy in patients with refractory partial seizures. Common side effects may include dizziness, somnolence, headache, nausea, and hyponatremia; therefore, regular monitoring of serum sodium levels is recommended during treatment. Caution is advised in patients with a history of hypersensitivity to carbamazepine or oxcarbazepine, as cross-reactivity may occur. Dose adjustments may be necessary in hepatic or renal impairment. Zenoxa OD 300 Tablet SR should be prescribed and administered under medical supervision to optimize seizure control and minimize adverse effects.