diphenhydramine vs Benadryl

diphenhydramine and Benadryl both are nouns.

Word	Noun	Adjective	Verb	Adverb
diphenhydramine	Yes	No	No	No
Benadryl	Yes	No	No	No

As nouns, diphenhydramine and Benadryl are synonyms defined as:

diphenhydramine and Benadryl: antihistamine (trade name Benadryl) used to treat allergic reactions involving the nasal passages (hay fever) and also to treat motion sickness

diphenhydramine (noun)	Benadryl (noun)
antihistamine (trade name Benadryl) used to treat allergic reactions involving the nasal passages (hay fever) and also to treat motion sickness	antihistamine (trade name Benadryl) used to treat allergic reactions involving the nasal passages (hay fever) and also to treat motion sickness