Quality Choice Ultra Strength Chewable Antacid Tablets compare to the Active Ingredient in Ultra Strength Tums. Provides Fast Relief: The calcium carbonate in the tablets provides fast relief from heartburn and acid indigestion symptoms. High Strength Formula: The 1000mg strength of calcium carbonate in each tablet provides maximum strength relief for even the most severe symptoms. Chewable Tablets: The chewable tablets are easy to consume and can be taken without the need for water, making them a convenient option for on-the-go relief. Berry Flavored: The delicious berry flavor makes the tablets easy to take and provides a pleasant taste while taking medication.