Mylanta vs alkalizer

Mylanta and alkalizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mylanta	Yes	No	No	No
alkalizer	Yes	No	No	No

As nouns, alkalizer is a hypernym of Mylanta; that is, alkalizer is a word with a broader meaning than Mylanta:

Mylanta: an antacid
alkalizer: an agent that counteracts or neutralizes acidity (especially in the stomach)

Other hypernyms of Mylanta include alkaliser, antacid, antiacid, gastric antacid.

Mylanta (noun)	alkalizer (noun)
an antacid	an agent that counteracts or neutralizes acidity (especially in the stomach)