pill roller vs pill pusher

pill roller and pill pusher both are nouns.

Word	Noun	Adjective	Verb	Adverb
pill roller	Yes	No	No	No
pill pusher	Yes	No	No	No

As nouns, pill roller and pill pusher are synonyms defined as:

pill roller and pill pusher: a health professional trained in the art of preparing and dispensing drugs

Other synonyms of pill roller include apothecary, chemist, druggist, pharmacist.

pill roller (noun)	pill pusher (noun)
a health professional trained in the art of preparing and dispensing drugs	a health professional trained in the art of preparing and dispensing drugs