medicine vs medicinal

medicine is a noun but medicinal is not a noun.

Word	Noun	Adjective	Verb	Adverb
medicine	Yes	No	Yes	No
medicinal	No	Yes	No	No

medicine (noun)	medicinal (noun)
the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries
punishment for one's actions
(medicine) something that treats or prevents or alleviates the symptoms of disease
the branches of medical science that deal with nonsurgical techniques

medicine (adjective)	medicinal (adjective)
	having the properties of medicine

medicine (verb)	medicinal (verb)
treat medicinally, treat with medicine