Zarontin vs antiepileptic drug

Zarontin and antiepileptic drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
Zarontin	Yes	No	No	No
antiepileptic drug	Yes	No	No	No

As nouns, antiepileptic drug is a hypernym of Zarontin; that is, antiepileptic drug is a word with a broader meaning than Zarontin:

Zarontin: an anticonvulsant drug (trade names Emeside and Zarontin) used to treat petit mal epilepsy
antiepileptic drug: a drug used to treat or prevent convulsions (as in epilepsy)

Other hypernyms of Zarontin include anticonvulsant, anticonvulsant drug, antiepileptic.

Zarontin (noun)	antiepileptic drug (noun)
an anticonvulsant drug (trade names Emeside and Zarontin) used to treat petit mal epilepsy	a drug used to treat or prevent convulsions (as in epilepsy)