Phenytoin is an anti-epileptic drug, also called an anticonvulsant. It works by slowing down
impulses in the brain that cause seizures.
Phenytoin is used to control seizures. Phenytoin is not made to treat all types of seizures, and
your doctor will determine if it is the right medication for you.
Phenytoin may also be used for other purposes not listed in this medication guide.