phenytoin vs diphenylhydantoin

phenytoin and diphenylhydantoin both are nouns.

Word	Noun	Adjective	Verb	Adverb
phenytoin	Yes	No	No	No
diphenylhydantoin	Yes	No	No	No

As nouns, phenytoin and diphenylhydantoin are synonyms defined as:

phenytoin and diphenylhydantoin: an anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative

Other synonyms of phenytoin include Dilantin.

phenytoin (noun)	diphenylhydantoin (noun)
an anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative	an anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative