Lanoxin vs digitalis

Lanoxin and digitalis both are nouns.

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

As nouns, digitalis is a hypernym of Lanoxin; that is, digitalis is a word with a broader meaning than Lanoxin:

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

Other hypernyms of Lanoxin include digitalin, digitalis glycoside.

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