TUMS vs Rolaids: Which Antacid Works Better? (2026)
TUMS (calcium carbonate) and Rolaids (calcium carbonate + magnesium hydroxide) both relieve heartburn fast. Choose TUMS if you want a calcium supplement bonus; choose Rolaids if you prefer dual-antacid coverage for indigestion.
See Today’s Price →At a Glance
| # | Product | Award | Price | Our Score | |
|---|---|---|---|---|---|
| 1 |  TUMS Ultra Strength Chewable Antacid Pe… |
Best for Calcium Bonus | $5 | 8.7 | Buy → |
| 2 |  TUMS Ultra Strength Chewable Antacid Ta… |
Best Value | $9 | 8.5 | Buy → |
| 3 |  Rolaids Ultra Strength Antacid Chewable… |
Best Dual-Action | $4 | 8.6 | Buy → |
| 4 |  Rolaids Ultra Strength Antacid Chewable… |
Best Mint Option | $7 | 8.3 | Buy → |
TUMS vs Rolaids Buying Guide
Both TUMS and Rolaids are over-the-counter antacids that neutralize stomach acid quickly — usually within minutes. They are often stocked side-by-side, and many people grab whichever is on sale. But there are real differences worth knowing.
Active Ingredients
TUMS contains only calcium carbonate, which reacts with stomach acid to form calcium chloride, water, and carbon dioxide. Each regular-strength tablet contains 500 mg of calcium carbonate; ultra-strength versions contain 1,000 mg. As a side effect, you also get a modest calcium supplement — about 200 mg per tablet at ultra strength. Rolaids contains both calcium carbonate and magnesium hydroxide. The magnesium works more slowly than calcium carbonate but helps prevent acid rebound (a temporary spike in stomach acid after the antacid wears off). The dual-ingredient formula is why Rolaids says it treats "more symptoms" — the magnesium helps with indigestion beyond pure acid neutralization.
Speed of Relief
Both products start working within 5 minutes of chewing. Clinical differences are minimal at standard doses. Neither is meaningfully faster than the other for typical heartburn after a meal.
When to Choose TUMS
Pick TUMS if you are also trying to increase your calcium intake (common for women over 50), if you prefer a wider flavor selection (Chewy Bites, smoothie variants), or if your primary complaint is acid-related heartburn with no bloating component. TUMS is also slightly less likely to cause loose stools, which magnesium can do at higher doses.
When to Choose Rolaids
Pick Rolaids if your symptoms include bloating or gas alongside heartburn, if you have experienced acid rebound with TUMS, or if you want a product that covers slightly more digestive territory. The magnesium hydroxide component gives Rolaids a mild laxative property, which can be helpful if constipation is also a concern.
Dosage and Safety Notes
Both products should not be taken for more than two weeks without consulting a doctor. Overuse of calcium-based antacids can cause hypercalcemia (milk-alkali syndrome) in rare cases. If you need antacids daily, talk to a physician about an H2 blocker or proton pump inhibitor, which address the underlying acid production rather than just neutralizing it.
Our Picks
TUMS Ultra Strength Chewable Antacid Peppermint 72 Count (Best for Calcium Bonus) — $5 See Price →
TUMS Ultra Strength Chewable Antacid Tablets Peppermint 160 Count (Best Value) — $9 See Price →
Rolaids Ultra Strength Antacid Chewable Tablets Assorted Fruit 72 Count (Best Dual-Action) — $4 See Price →
Rolaids Ultra Strength Antacid Chewable Tablets Mint 72 Count (Best Mint Option) — $7 See Price →
Showing 4 of 4 products
TUMS Ultra Strength Chewable Antacid Peppermint 72 Count
“Best antacid if you also want to supplement calcium intake.”
See Today’s Price →What we like
- Fast-acting
- adds calcium intake
- wide flavor range
- widely available
Watch out for
- No magnesium component
- possible acid rebound at high doses
TUMS Ultra Strength Chewable Antacid Tablets Peppermint 160 Count
“Best value for frequent heartburn sufferers who go through antacids quickly.”
See Today’s Price →What we like
- Larger count per bottle
- same ultra-strength formula
- good for frequent users
Watch out for
- Larger bottle less portable
Rolaids Ultra Strength Antacid Chewable Tablets Assorted Fruit 72 Count
“Best for heartburn plus indigestion or bloating.”
See Today’s Price →What we like
- Calcium carbonate + magnesium hydroxide
- less acid rebound
- helps with gas
Watch out for
- Magnesium can cause loose stools at high doses
Rolaids Ultra Strength Antacid Chewable Tablets Mint 72 Count
“Solid choice for Rolaids fans who prefer mint over fruit flavors.”
See Today’s Price →What we like
- Dual-antacid formula
- mint flavor
- fast relief
Watch out for
- Smaller count per dollar vs larger packs
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