Which specific antacid does the patient mention using?

The selection of Tums as the specific antacid mentioned by the patient is indicative of its common use for alleviating symptoms of heartburn and indigestion. Tums is a popular over-the-counter antacid that contains calcium carbonate, which neutralizes stomach acid and provides quick relief from discomfort. This choice reflects the patient's experience and preference for a readily available and widely recognized product that is often first-line for treating mild gastrointestinal acidity issues.

It's important to note that the other antacids listed are effective as well but may not have been specified by the patient in this context. For example, Rolaids also works similarly but combines calcium and magnesium carbonate. Mylanta is a mixture containing aluminum hydroxide and magnesium hydroxide, and Gaviscon is known for its alginate component that forms a protective barrier on top of the stomach contents. The specific mention of Tums highlights the patient's familiarity with this particular medication and its efficacy for their symptoms.