atorvastatin vs statin drug

atorvastatin and statin drug both are nouns.

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

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

atorvastatin: an oral drug (trade name Lipitor) that is effective in lowering triglycerides; potent in reducing LDL cholesterol because higher doses can be given
statin drug: a medicine that lowers blood cholesterol levels by inhibiting HMG-CoA reductase

Other hypernyms of atorvastatin include lipid-lowering medication, lipid-lowering medicine, statin.

atorvastatin (noun)	statin drug (noun)
an oral drug (trade name Lipitor) that is effective in lowering triglycerides; potent in reducing LDL cholesterol because higher doses can be given	a medicine that lowers blood cholesterol levels by inhibiting HMG-CoA reductase