Cuprimine vs medicinal drug

Cuprimine and medicinal drug both are nouns.

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

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

Cuprimine: a drug (trade name Cuprimine) used to treat heavy metal poisoning and Wilson's disease and severe arthritis
medicinal drug: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of Cuprimine include medicament, medication, medicine.

Cuprimine (noun)	medicinal drug (noun)
a drug (trade name Cuprimine) used to treat heavy metal poisoning and Wilson's disease and severe arthritis	(medicine) something that treats or prevents or alleviates the symptoms of disease