Tums is a well-established digestive health brand specializing in chewable antacid tablets for the relief of occasional heartburn, acid indigestion, and sour stomach. Introduced in 1930, Tums uses calcium carbonate as its active ingredient to neutralize excess stomach acid. Available in a variety of strengths, flavours, and package sizes, Tums provides convenient, fast-acting relief for common acid-related digestive discomfort.