milk of magnesia vs physic

milk of magnesia and physic both are nouns.

Word	Noun	Adjective	Verb	Adverb
milk of magnesia	Yes	No	No	No
physic	Yes	No	No	No

As nouns, physic is a hypernym of milk of magnesia; that is, physic is a word with a broader meaning than milk of magnesia:

milk of magnesia: purgative consisting of a milky white liquid suspension of magnesium hydroxide; used as a laxative and (in smaller doses) as an antacid
physic: a purging medicine; stimulates evacuation of the bowels

Other hypernyms of milk of magnesia include aperient, cathartic, purgative.

milk of magnesia (noun)	physic (noun)
purgative consisting of a milky white liquid suspension of magnesium hydroxide; used as a laxative and (in smaller doses) as an antacid	a purging medicine; stimulates evacuation of the bowels