antispasmodic vs medication

antispasmodic and medication both are nouns.

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

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

antispasmodic: a drug used to relieve or prevent spasms (especially of the smooth muscles)
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

Other hypernyms of antispasmodic include medicament, medicinal drug, medicine.

antispasmodic (noun)	medication (noun)
a drug used to relieve or prevent spasms (especially of the smooth muscles)	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease