immunosuppressant vs medication

immunosuppressant and medication both are nouns.

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

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

immunosuppressant: a drug that lowers the body's normal immune response
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

immunosuppressant (noun)	medication (noun)
a drug that lowers the body's normal immune response	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease