Over-the-counterLower-cost generic available


(Calcium Carbonate)

  • Chewable tablet
  • Liquid
Back to: Full Site NavigationSkip to: side effects sectionSkip to: What to expect sectionSkip to: Risks and warnings sectionSkip to: Tips from users and pharmacists

Relieves heartburn.

Skip Upsides & Downsides section. Skip to side effects section.
Over-the-counterLower-cost generic available

Our bottom line

Tums (Calcium Carbonate) gives quick relief for heartburn, but don't expect it to last all day.


  • Works really fast.
  • Available over the counter without a prescription.
  • Cheap.
What do people say?
1370 reviews


  • Doesn't last very long.
  • Other antacids like Zantac (H2 blockers) and omeprazole (proton pump inhibitors) can work better and last longer.
  • Some chalky aftertaste.

Save on your next Tums (Calcium Carbonate) prescription

Get the lowest price for your medication, even if you have insurance.

  • (120) 1000mg chewable tablet
  • Cost for (120) 1000mg chewable tablet of Tums (Calcium Carbonate) at pharmacies

What to expect when you take Tums (Calcium Carbonate)

Skip what to expect section. Skip to Risks & Warnings section.
Tips from our pharmacists
  • Take at the first sign of discomfort.
  • You might need to take more than once a day but pay attention to the instructions on your bottle to avoid overdosing.
  • You need to separate Tums from some medications to avoid interactions.
  • If heartburn doesn't improve or lasts more than 2 weeks, talk to your doctor.
  • People with kidney disease on dialysis may need to take a lower dose or avoid use. Your doctor can do blood tests to see if it's safe to use.
  • Don't take if you have high blood calcium levels.
Skip side effects sections. Skip to What to Expect and Pharmacists Tips section.

Side effects for Tums (Calcium Carbonate)

Filter group. All currently selected
Filter group. All currently selected

These are side effects of Tums (Calcium Carbonate) reported to the FDA by people taking it, and by doctors and pharmacists.

0 reports

Risks and Warnings for Tums (Calcium Carbonate)

Skip Risks and Warnings section. Skip to Tips section.
  • There are many different over the counter medications with the brand name Tums (Calcium Carbonate). Each one may contain different active ingredients. Be sure to read the labels carefully to understand what kind of medicine you have and what the correct dose should be.

Means that some groups have a high risk of experiencing this side effect

Tips from pharmacists and people taking Tums (Calcium Carbonate)

Final section. Do you want to return to drug navigation?
The FDA category for this medication is N. It is advised that you: Unknown
Kidneys and liver
  • Tips from our pharmacists
  • People with kidney disease on dialysis may need to take a lower dose or avoid use. Your doctor can do blood tests to see if it's safe to use.
  • Risks from our pharmacists
  • If you have kidney or hyperparathyroid disease Tums (Calcium Carbonate) can build up in your blood. This may can cause toxic levels of calcium in your body. This is more likely if you have severe kidney disease (defined as a kidney function blood test called GFR of less than 30ml/min). If you have severe kidney disease or are on kidney dialysis don't use Tums (Calcium Carbonate); a different antacid would be better for you.
  • Tums (Calcium Carbonate) contains calcium. Calcium can be an ingredient in some kidney stones. If you have had kidney stones in the past (especially the calcium-containing kind) be careful using Tums (Calcium Carbonate). Use the lowest dose for the shortest time possible or just play it safe and use a different antacid instead.
  • It caused me to have kidney stones.