alkaliser vs antiacid

alkaliser and antiacid both are nouns.

Word	Noun	Adjective	Verb	Adverb
alkaliser	Yes	No	No	No
antiacid	Yes	No	No	No

As nouns, alkaliser and antiacid are synonyms defined as:

alkaliser and antiacid: an agent that counteracts or neutralizes acidity (especially in the stomach)

Other synonyms of alkaliser include alkalizer, antacid, gastric antacid.

alkaliser (noun)	antiacid (noun)
an agent that counteracts or neutralizes acidity (especially in the stomach)	an agent that counteracts or neutralizes acidity (especially in the stomach)