digitalis vs Lanoxin

digitalis and Lanoxin both are nouns.

Word	Noun	Adjective	Verb	Adverb
digitalis	Yes	No	No	No
Lanoxin	Yes	No	No	No

As nouns, Lanoxin is a hyponym of digitalis; that is, Lanoxin is a word with a more specific, narrower meaning than digitalis:

digitalis: a powerful cardiac stimulant obtained from foxglove
Lanoxin: digitalis preparation (trade name Lanoxin) used to treat congestive heart failure or cardiac arrhythmia; helps the heart beat more forcefully

Other hyponyms of digitalis include digitoxin, digoxin.

digitalis (noun)	Lanoxin (noun)
any of several plants of the genus Digitalis	digitalis preparation (trade name Lanoxin) used to treat congestive heart failure or cardiac arrhythmia; helps the heart beat more forcefully
a powerful cardiac stimulant obtained from foxglove