Aureomycin vs chlortetracycline

Aureomycin and chlortetracycline both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aureomycin	Yes	No	No	No
chlortetracycline	Yes	No	No	No

As nouns, Aureomycin and chlortetracycline are synonyms defined as:

Aureomycin and chlortetracycline: a yellow crystalline antibiotic (trade name Aureomycin) used to treat certain bacterial and rickettsial diseases

Aureomycin (noun)	chlortetracycline (noun)
a yellow crystalline antibiotic (trade name Aureomycin) used to treat certain bacterial and rickettsial diseases	a yellow crystalline antibiotic (trade name Aureomycin) used to treat certain bacterial and rickettsial diseases