isoproterenol vs medicinal drug

isoproterenol and medicinal drug both are nouns.

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

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

isoproterenol: drug (trade name Isuprel) used to treat bronchial asthma and to stimulate the heart
medicinal drug: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of isoproterenol include medicament, medication, medicine.

isoproterenol (noun)	medicinal drug (noun)
drug (trade name Isuprel) used to treat bronchial asthma and to stimulate the heart	(medicine) something that treats or prevents or alleviates the symptoms of disease