hydantoin vs Dilantin

hydantoin and Dilantin both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydantoin	Yes	No	No	No
Dilantin	Yes	No	No	No

As nouns, Dilantin is a hyponym of hydantoin; that is, Dilantin is a word with a more specific, narrower meaning than hydantoin:

hydantoin: any of a group of anticonvulsant drugs used in treating epilepsy
Dilantin: an anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative

Other hyponyms of hydantoin include diphenylhydantoin, phenytoin.

hydantoin (noun)	Dilantin (noun)
any of a group of anticonvulsant drugs used in treating epilepsy	an anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative