Active Ingredients- (per tablet) Calcium Carbonate USP 1000mg - Antacid. Inactive Ingredients- Corn starch, FD&C red #40 lake, FD&C yellow #5 (tartrazine) lake, FD&C yellow #6 lake, flavors, mineral oil, sodium polyphosphate, sucrose, talc. Directions- Adults and children 12 years of age and over: Chew 2-3 tablets as symptoms occur, or as directed by a doctor. Chew or crush tablets completely before swallowing. 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 7 tablets in 24 hours. If pregnant do not take more than 5 tablets in 24 hours. 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.