Used primarily as an anticonvulsant medication to control seizures, particularly in epilepsy. It works by stabilizing electrical activity in the brain, specifically by reducing abnormal electrical impulses in nerve cells. Commonly prescribed for tonic-clonic and complex partial seizures. Also used in managing certain types of arrhythmias and neuropathic pain in some cases. The solution form allows for intravenous administration when oral intake is not possible, providing rapid therapeutic effects in emergency settings.