anticoagulant vs medicinal drug

anticoagulant and medicinal drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
anticoagulant	Yes	No	No	No
medicinal drug	Yes	No	No	No

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

anticoagulant: medicine that prevents or retards the clotting of blood
medicinal drug: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of anticoagulant include medicament, medication, medicine.

anticoagulant (noun)	medicinal drug (noun)
medicine that prevents or retards the clotting of blood	(medicine) something that treats or prevents or alleviates the symptoms of disease