This list may not include all brand names. Brain cells communicate with each other by electricity. This is a seizure or convulsion .
Hydantoins are anticonvulsants.
Anticonvulsants stop the spread of an abnormal signal to other parts of the brain. This prevents a seizure. Phenytoin is the most commonly used hydantoin anticonvulsant. It may be used to treat other conditions as directed by your health care provider. Mephenytoin is only used when other, safer anticonvulsants have not worked.