antiepileptic vs medicament

antiepileptic and medicament both are nouns.

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

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

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

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

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