buffered aspirin vs Bufferin

buffered aspirin and Bufferin both are nouns.

Word	Noun	Adjective	Verb	Adverb
buffered aspirin	Yes	No	No	No
Bufferin	Yes	No	No	No

As nouns, buffered aspirin and Bufferin are synonyms defined as:

buffered aspirin and Bufferin: aspirin coated with a substance capable of neutralizing acid (trade name Bufferin)

buffered aspirin (noun)	Bufferin (noun)
aspirin coated with a substance capable of neutralizing acid (trade name Bufferin)	aspirin coated with a substance capable of neutralizing acid (trade name Bufferin)