administration vs medication

administration and medication both are nouns.

Word	Noun	Adjective	Verb	Adverb
administration	Yes	No	No	No
medication	Yes	No	No	No

As nouns, medication is a hypernym of administration; that is, medication is a word with a broader meaning than administration:

administration (noun)	medication (noun)
a method of tending to or managing the affairs of some group of people (especially the group's business affairs)	the act of treating with medicines or remedies
the act of administering medication	(medicine) something that treats or prevents or alleviates the symptoms of disease
the act of meting out justice according to the law
the act of governing; exercising authority
the persons (or committees or departments etc.) who make up a body for the purpose of administering something
the tenure of a president