Starts to work in 10 sec
2 double action calcium and magnesium
675 mg calcium carbonate USP
135 mg magnesium hydroxide USP
For fast and effective relief of heartburn associated with excess stomach acid. Rolaids starts to neutralize stomach acid in less than 10 second. Rolaids is an excellent source of calcium and magnesium. Calcium intake, when combined with sufficient vitamin D, a healthy diet, and regular exercise, may reduce the risk of developing osteoporosis. Low sodium antacid.