hydromorphone vs hydromorphone hydrochloride

hydromorphone and hydromorphone hydrochloride both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydromorphone	Yes	No	No	No
hydromorphone hydrochloride	Yes	No	No	No

As nouns, hydromorphone and hydromorphone hydrochloride are synonyms defined as:

hydromorphone and hydromorphone hydrochloride: a narcotic analgesic (trade name Dilaudid) used to treat moderate to severe pain

Other synonyms of hydromorphone include Dilaudid.

hydromorphone (noun)	hydromorphone hydrochloride (noun)
a narcotic analgesic (trade name Dilaudid) used to treat moderate to severe pain	a narcotic analgesic (trade name Dilaudid) used to treat moderate to severe pain