Lacoset 150 Tablet contains Lacosamide 150 mg, an antiepileptic agent indicated for the treatment of partial-onset seizures in patients with epilepsy. Lacosamide acts by selectively enhancing slow inactivation of voltage-gated sodium channels, stabilizing hyperexcitable neuronal membranes and inhibiting repetitive neuronal firing. This mechanism helps to reduce seizure frequency and severity. Lacoset 150 is typically administered orally, with dosage individualized based on clinical response and tolerability. It may be used as monotherapy or adjunctive therapy in adults and pediatric patients over 4 years of age. Common adverse effects include dizziness, headache, nausea, and diplopia, which are generally mild to moderate in intensity. Caution is advised in patients with cardiac conduction abnormalities due to the potential for PR interval prolongation. Regular monitoring of cardiac function may be warranted in susceptible individuals. Lacoset 150 should be used under strict medical supervision, with gradual dose titration to minimize adverse effects. It is contraindicated in patients with known hypersensitivity to Lacosamide or any excipients. Concomitant use with other central nervous system depressants may enhance sedative effects. Patients should be advised to avoid activities requiring mental alertness until they understand how the medication affects them.