decoagulant vs Coumadin

decoagulant and Coumadin both are nouns.

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

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

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

Other hyponyms of decoagulant include dicoumarol, dicumarol, heparin, Lipo-Hepin, Liquaemin, warfarin.

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