If you have heart burn often enough that you have to take a drug like Zantac or the purple pill,most likely you are not producing enough hydrochloric acid. Normally,we produce hydrochloric acid with each meal. This is how we normally sterilize our food to keep bacteria and yeast from fermenting it. As with many other pleasantries of getting older,we stop producing as much hydrochloric acid as we get older. This allows bacteria and yeast to ferment the food we eat. A by-product of fermentation is gas/bloating. This gas can blow open a valve that normally keeps the acid in your stomach from getting up into your esophagus. The stomach has a protective lining. The esophagus does not. If hydrochloric acid gets up into the esophagus,you experience "heart burn". These critters also produce an acid waste product that adds to heart burn. Antacid pills give symptom relief but don't address the root cause of the problem. By eliminating the hydrochloric acid your body is producing,these drugs set you up for more bacterial overgrowth. Take Robynzyme to restore normal levels of hydrochloric acid. If you only have occasional heart burn from spicy foods or some other foods,use the Fire Fighters. Fire Fighters will also work for general sour stomach or upset stomach. Safe for children to use. 30 Servings Ingredients: Vitamin C 7.4 mg Calcium 21 mg Sodium 20 mg. Zinc Carnosine 100 mg. L-Glutamine 5000 MG. Arabinogalactans 1000 mg Deglycyrrhizinated Licorice Root 500 mg Aloe Vera Leaf Extract 250 mg N-Acetyl Glucosamine (from shrimp and crab)250 mg Slippery Elm Bark 200 mg Marshmallow Root 100 mg Stevia Leaf Extract 60 mg