antiepileptic vs medication

antiepileptic and medication both are nouns.

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

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

antiepileptic: a drug used to treat or prevent convulsions (as in epilepsy)
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of antiepileptic include medicament, medicinal drug, medicine.

antiepileptic (noun)	medication (noun)
a drug used to treat or prevent convulsions (as in epilepsy)	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease