Kavrin vs papaverine

Kavrin and papaverine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kavrin	Yes	No	No	No
papaverine	Yes	No	No	No

As nouns, Kavrin and papaverine are synonyms defined as:

Kavrin and papaverine: an alkaloid medicine (trade name Kavrin) obtained from opium; used to relax smooth muscles; it is nonaddictive

Kavrin (noun)	papaverine (noun)
an alkaloid medicine (trade name Kavrin) obtained from opium; used to relax smooth muscles; it is nonaddictive	an alkaloid medicine (trade name Kavrin) obtained from opium; used to relax smooth muscles; it is nonaddictive