propoxyphene hydrochloride vs Darvon

propoxyphene hydrochloride and Darvon both are nouns.

Word	Noun	Adjective	Verb	Adverb
propoxyphene hydrochloride	Yes	No	No	No
Darvon	Yes	No	No	No

As nouns, propoxyphene hydrochloride and Darvon are synonyms defined as:

propoxyphene hydrochloride and Darvon: a mildly narcotic analgesic drug (trade name Darvon) related to methadone but less addictive

Other synonyms of propoxyphene hydrochloride include propoxyphene.

propoxyphene hydrochloride (noun)	Darvon (noun)
a mildly narcotic analgesic drug (trade name Darvon) related to methadone but less addictive	a mildly narcotic analgesic drug (trade name Darvon) related to methadone but less addictive