Prelief is the only product that takes out food acid from: coffee, tomato sauce, fruit juices, wine and many other favorite foods, even as you eat. Taking Prelief with these foods can often stop them from causing painful bladder symptoms. For bladder discomfort & heartburn caused by foods.* Reduces acid up to 95%. Medically tested. No drugs. *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.