Brivazen 100 Tablet is used for treating partial-onset seizures (seizures involving only one part of the brain) in people with epilepsy (fits) in patients one month of age and older. Partial-onset seizures are characterized by abnormal electrical activity in only one brain hemisphere. Common symptoms are involuntary muscle contractions, followed by relaxation on one side of the body, uncontrolled head or eye movements, rapid heart rate, and a tingling sensation on the skin.