metronidazole vs Flagyl

metronidazole and Flagyl both are nouns.

Word	Noun	Adjective	Verb	Adverb
metronidazole	Yes	No	No	No
Flagyl	Yes	No	No	No

As nouns, metronidazole and Flagyl are synonyms defined as:

metronidazole and Flagyl: antiprotozoal medication (trade name Flagyl) used to treat trichomoniasis and giardiasis

metronidazole (noun)	Flagyl (noun)
antiprotozoal medication (trade name Flagyl) used to treat trichomoniasis and giardiasis	antiprotozoal medication (trade name Flagyl) used to treat trichomoniasis and giardiasis