HAART vs medication

HAART and medication both are nouns.

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

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

HAART: a combination of protease inhibitors taken with reverse transcriptase inhibitors; used in treating AIDS and HIV
medication: (medicine) something that treats or prevents or alleviates the symptoms of disease

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

HAART (noun)	medication (noun)
a combination of protease inhibitors taken with reverse transcriptase inhibitors; used in treating AIDS and HIV	the act of treating with medicines or remedies
	(medicine) something that treats or prevents or alleviates the symptoms of disease