antiepileptic vs antiepileptic drug

antiepileptic and antiepileptic drug both are nouns.

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

As nouns, antiepileptic and antiepileptic drug are synonyms defined as:

antiepileptic and antiepileptic drug: a drug used to treat or prevent convulsions (as in epilepsy)

Other synonyms of antiepileptic include anticonvulsant, anticonvulsant drug.

antiepileptic (noun)	antiepileptic drug (noun)
a drug used to treat or prevent convulsions (as in epilepsy)	a drug used to treat or prevent convulsions (as in epilepsy)