Active Ingredients- (per tablet) Calcium Carbonate USP 500mg - Antacid Inactive Ingredients- corn starch, flavor, mineral oil, sodium polyphosphate, sucrose, talc Directions- Adults and children 12 years of age and over: chew 2-4 tablets as symptoms occur, or as directed by a doctor. Do not take for symptoms that persist for more than 2 weeks unless advised by a doctor. Warnings- Ask a doctor or pharmacist before use if you are presently taking a prescription drug. Antacids may interact with certain prescription drugs. When using this product, do not take more than 15 tablets in 24 hours. When using this product, if pregnant do not take more than 10 tablets in 24 hours. When using this product, do not use the maximum dosage for more than 2 weeks except under the advice and supervision of a doctor. Keep out of reach of children.