Unique Antacid BarrierRelieves Heartburn Caused by Acid Reflux. Indications: For the relief of heartburn, sour stomach, acid indigestion and upset stomach associated with these conditions. Directions: Chew 2 to 4 tablets four times a day or as directed by a physician. Tablets should be taken after meals and a bedtime or as needed. For best results follow by a half glass of water or other liquid. Do not swallow whole. Ingredients: Active Ingredients: per tablet: Aluminum Hydroxide (160 mg), Magnesium Carbonate (105 mg)Inactive Ingredients: Alginic Acid, Calcium Stearate, Flavor, Sodium Bicarbonate, Sucrose Drug Interaction Precautions: Antacids may interact with certain prescription drugs. If you are presently taking a prescription drug, do not take this product without checking with your physician or other health professional. Warnings: Do not take more than 16 tablets in a 24-hour period or 16 tablets daily for more than 2 weeks, except under the advice and supervision of a physician. Do not use this product