Reduces acid from food and drinks.* Reduces up to 95% of acid.* Enjoy your favorite meals without flare-up. Drug free. No side effects. From the developers of Lactaid & Beano. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. **A single Prelief caplet reduces the acid in a 6 oz cup of coffee by 95%.