From the manufacturer's website:
Get relief from your symptoms with this Prelief Dietary Supplement 120 Caplets. Trigger foods include coffee, fruits and juices, tomato sauce, wine and many others whose acidity is often not immediately obvious until the effects are felt. This Prelief supplement is the only product that takes out food acid as you eat and stops the foods from causing painful symptoms. It treats the symptoms of occasional heartburn and acid indigestion so you can enjoy your favorite foods and drinks again. It's free of gluten and yeast, as well as drug-free. This Prelief Dietary Supplement 120 Caplets has no side effects, making it very safe for use.
Warning: See attached picture.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.