Sabril is mainly used to treat partial seizures that are resistant to other medications, especially in patients for whom alternative treatments have not proven effective. It is also used to treat infantile spasms, a rare form of epilepsy that usually occurs in young children. Sabril works by inhibiting excessive activity in the brain that causes epileptic seizures. It is important to take this drug Sabril under close medical supervision due to the possibility of its side effects, the most important of which is the effect on vision. Therefore, the patient must undergo periodic eye examinations during the treatment period.