statin drug vs medicinal drug

statin drug and medicinal drug both are nouns.

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

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

statin drug: a medicine that lowers blood cholesterol levels by inhibiting HMG-CoA reductase
medicinal drug: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of statin drug include medicament, medication, medicine.

statin drug (noun)	medicinal drug (noun)
a medicine that lowers blood cholesterol levels by inhibiting HMG-CoA reductase	(medicine) something that treats or prevents or alleviates the symptoms of disease