NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,865 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

A drug used to treat or prevent seizures or convulsions that may be caused by epilepsy, brain surgery, or treatment for brain cancer. It is a type of anticonvulsant agent. Also called phenytoin sodium.