Key takeaways
Calcium carbonate (Tums, Pepto Kids) and calcium carbonate/magnesium hydroxide (Rolaids) are both over-the-counter antacids used to relieve heartburn, indigestion, and sour stomach. But they have several differences. The main difference between the two is that Tums contains only calcium carbonate, while Rolaids combines calcium carbonate with magnesium hydroxide. This combination in Rolaids can provide faster relief and may be less likely to cause constipation compared to Tums. However, Rolaids may not be suitable for long-term use and can interact with more medications due to the presence of magnesium. Both medications come in various strengths and formulations. If you are pregnant or have conditions affecting calcium levels, consult your healthcare professional before using either product.
