Not intended to be negative. I'm just a label reader.
"Stomach Comfort" mentioned above contains: calcium carbonate, alginic acid (from kelp), wintergreen oil, papaya fruit, slippery elm bark, licorice root concentrate and ginger rhizome, according to what I found on the website.
Calcium products, including Tums, etc. do reduce acid temporarily. I personally react badly to licorice because it contains sulfite (and I can't stand the flavor), but a lot of other people have found relief, according to their posts, from several of these ingredients.
I also read the "Other Ingredients": Xylitol, caseinate powder - milk derived (calcium, sodium, lecithin), fructose, stearic acid (vegetable), magnesium stearate (vegetable), and natural flavors.
Xylitol is one of the sugar alcohols. It's used as a sweetener. Sorbitol, another sugar alcohol, gives me gas bloating and diarrhea. Xylitol is supposed to be less of a problem. I have a problem with milk too.