purgative vs aperient

purgative and aperient both are nouns.

Word	Noun	Adjective	Verb	Adverb
purgative	Yes	Yes	No	No
aperient	Yes	Yes	No	No

As nouns, purgative and aperient are synonyms defined as:

purgative and aperient: a purging medicine; stimulates evacuation of the bowels

Other synonyms of purgative include cathartic, physic.

purgative (noun)	aperient (noun)
a purging medicine; stimulates evacuation of the bowels	a purging medicine; stimulates evacuation of the bowels

purgative (adjective)	aperient (adjective)
strongly laxative	mildly laxative