Coumadin vs anticoagulant

Coumadin and anticoagulant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Coumadin	Yes	No	No	No
anticoagulant	Yes	No	No	No

As nouns, anticoagulant is a hypernym of Coumadin; that is, anticoagulant is a word with a broader meaning than Coumadin:

Coumadin: an anticoagulant (trade name Coumadin) use to prevent and treat a thrombus or embolus
anticoagulant: medicine that prevents or retards the clotting of blood

Other hypernyms of Coumadin include anticoagulant medication, decoagulant.

Coumadin (noun)	anticoagulant (noun)
an anticoagulant (trade name Coumadin) use to prevent and treat a thrombus or embolus	medicine that prevents or retards the clotting of blood