immune suppressant drug vs immunosuppressive

immune suppressant drug and immunosuppressive both are nouns.

Word	Noun	Adjective	Verb	Adverb
immune suppressant drug	Yes	No	No	No
immunosuppressive	Yes	Yes	No	No

As nouns, immune suppressant drug and immunosuppressive are synonyms defined as:

immune suppressant drug and immunosuppressive: a drug that lowers the body's normal immune response

Other synonyms of immune suppressant drug include immunosuppressant, immunosuppressive drug, immunosuppressor.

immune suppressant drug (noun)	immunosuppressive (noun)
a drug that lowers the body's normal immune response	a drug that lowers the body's normal immune response

immune suppressant drug (adjective)	immunosuppressive (adjective)
	of or relating to a substance that lowers the body's normal immune response and induces immunosuppression