azathioprine vs medication

azathioprine and medication both are nouns.

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

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

azathioprine: an immunosuppressive drug (trade name Imuran) used to prevent rejection of a transplanted organ
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

azathioprine (noun)	medication (noun)
an immunosuppressive drug (trade name Imuran) used to prevent rejection of a transplanted organ	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease