Topiramate, brand name Topamax, belongs to a class of drugs known as Carbonic anhydrase inhibitor anticonvulsants. Topiramate is used in medicine to treat seizures in certain patients. Topiramate may be used alone or in combination with other medication. Topiramate may be also be prescribed by physicians to prevent migraines. Topiramate mainly functions by affecting chemicals in the brain that assist to reduce seizure activity and prevent migraines. Topiramate belongs to a drug class known as antiepileptics or anticonvulsants. This medication can be used alone or with other medications to control and prevent epilepsy. It can also be used to decrease how often you get migraines or prevent them completely. However, Topiramate will not treat a migraine headache once it has already begun. This medication is known to interact with other medications so let your healthcare provider know if you are taking any other drugs. There are also side effects associated with Topiramate, so if you notice any let your doctor know immediately. Topiramate works by affecting several chemicals in your brain that are known to prevent migraine headaches from occurring and reduce seizure activity.