Alka-Seltzer is a medication for acid reflux/heartburn, but one of the active ingredients is “anhydrous citric acid.” I understand that this is what makes it fizzy, but I don’t understand how an acid could be one of the active ingredients in an antacid medication. Can anyone explain?
In: Chemistry
The active ingredient in Alka-Seltzer (besides aspirin) is sodium bicarbonate, which is mildly alkaline. That’s probably where the name comes from.
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