medicinal drug vs medication

medicinal drug and medication both are nouns.

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

As nouns, medicinal drug and medication are synonyms defined as:

medicinal drug and medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other synonyms of medicinal drug include medicament, medicine.

medicinal drug (noun)	medication (noun)
(medicine) something that treats or prevents or alleviates the symptoms of disease	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease