420 milligrams of calcium carbonate per tablet. Two tablets for acid indigestion, gas, heartburn and acid stomach per packet, 250 packets per dispenser carton. Carton is handy for distributing digestive relief to co-workers, neighbors, friends and family..
![McKesson Brand - Antacid McKesson Brand 420 mg Strength Tablet 250 Packets per Box, 2 Tablets per Packet [250/BX]](http://everydaysupplyco.com/cdn/shop/files/93ad51eeedc2b6e5357ef73f4b5ba36e1bd56346.jpg?v=1742839625&width=2000)
![McKesson Brand - Antacid McKesson Brand 420 mg Strength Tablet 250 Packets per Box, 2 Tablets per Packet [250/BX]](http://everydaysupplyco.com/cdn/shop/files/93ad51eeedc2b6e5357ef73f4b5ba36e1bd56346_1024x.jpg?v=1742839625)