antidiabetic vs medicament

antidiabetic and medicament both are nouns.

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

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

antidiabetic: a drug used to treat diabetes mellitus
medicament: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

antidiabetic (noun)	medicament (noun)
a drug used to treat diabetes mellitus	(medicine) something that treats or prevents or alleviates the symptoms of disease