febrifuge vs medicinal drug

febrifuge and medicinal drug both are nouns.

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

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

febrifuge: any medicine that lowers body temperature to prevent or alleviate fever
medicinal drug: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of febrifuge include medicament, medication, medicine.

febrifuge (noun)	medicinal drug (noun)
any medicine that lowers body temperature to prevent or alleviate fever	(medicine) something that treats or prevents or alleviates the symptoms of disease