Seconal vs red devil

Seconal and red devil both are nouns.

Word	Noun	Adjective	Verb	Adverb
Seconal	Yes	No	No	No
red devil	Yes	No	No	No

As nouns, Seconal and red devil are synonyms defined as:

Seconal and red devil: barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions

Other synonyms of Seconal include secobarbital, secobarbital sodium.

Seconal (noun)	red devil (noun)
barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions	barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions