Phenytoin is an antiepileptic medication used to treat and prevent seizures. It is also used to treat certain types of nerve pain. It works by decreasing the abnormal electrical activity in the brain. Common side effects of phenytoin include drowsiness, dizziness, unsteadiness, nausea, vomiting, and headache.
Anatomical Therapeutic Chemical Classification
N - Nervous system
N03 Antiepileptics
N03A - Antiepileptics
N03AB Hydantoin derivatives
ATC Code
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Phenytoin