drug vs orally

drug is a noun but orally is not a noun.

Word	Noun	Adjective	Verb	Adverb
drug	Yes	No	Yes	No
orally	No	No	No	Yes

drug (noun)	orally (noun)
a substance that is used as a medicine or narcotic

drug (verb)	orally (verb)
administer a drug to
use recreational drugs

drug (adverb)	orally (adverb)
	by spoken rather than written means
	(of drugs) through the mouth rather than through injection; by mouth