veronal vs barbitone

veronal and barbitone both are nouns.

Word	Noun	Adjective	Verb	Adverb
veronal	Yes	No	No	No
barbitone	Yes	No	No	No

As nouns, veronal and barbitone are synonyms defined as:

Other synonyms of veronal include barbital, diethylbarbituric acid, diethylmalonylurea.

veronal (noun)	barbitone (noun)
a barbiturate used as a hypnotic	a barbiturate used as a hypnotic