ampoule vs ampul

ampoule and ampul both are nouns.

Word	Noun	Adjective	Verb	Adverb
ampoule	Yes	No	No	No
ampul	Yes	No	No	No

As nouns, ampoule and ampul are synonyms defined as:

ampoule and ampul: a small bottle that contains a drug (especially a sealed sterile container for injection by needle)

Other synonyms of ampoule include ampule, phial, vial.

ampoule (noun)	ampul (noun)
a small bottle that contains a drug (especially a sealed sterile container for injection by needle)	a small bottle that contains a drug (especially a sealed sterile container for injection by needle)