Tums Products for Heartburn or Upset Stomach

Medically Reviewed by Ami Ishver, PharmD on October 08, 2025
5 min read

Tums products are commonly used for quick relief of heartburn, acid indigestion, or sour or upset stomach. Some products may also be used to help relieve nausea or gas or even help with sleep problems. There are over-the-counter (OTC) medicines and dietary supplement Tums products available. The main active ingredient in most Tums products is calcium carbonate, which belongs to a class of medicines known as calcium antacids. Calcium carbonate works by reducing the amount of acid in your stomach. Other ingredients included in some Tums products are listed below.

  • Antacid (tricalcium phosphate), which works by reducing the amount of acid in your stomach 
  • Anti-gas (simethicone), which helps to bring small gas bubbles together to make gas easier to pass
  • Sleep aid (melatonin), a chemical naturally found in your body and also available as a dietary supplement that affects your sleep cycle
  • Anti-nausea (ginger root extract), a dietary supplement that contains chemicals that may help reduce nausea

There are Tums products for adults and children as young as 12 years old.

Note: The FDA has not reviewed Tums dietary supplements for safety and effectiveness, and they are not approved by the FDA. Learn more about dietary supplements here.

Tums products are generally well tolerated. Some possible, mild side effects may include:

  • Constipation
  • Gas

Stop taking the medicine if you develop a rash or hives. Get medical help right away if you have signs of a serious allergic reaction, such as trouble breathing or swelling of the face, lips, or throat.

Symptoms of a heart attack may be mistaken for heartburn. Get emergency help if you have any of the following symptoms.

  • Chest pain or pressure
  • Fast or abnormal heartbeat
  • Trouble breathing
  • Pain in your back, jaw, throat, or arm
  • Sweating, upset stomach, vomiting, or dizziness

You should not continue to use Tums products regularly at the maximum dose for longer than two weeks unless your health care provider tells you to do so. Talk to your pharmacist or other health care provider if you have any questions.

Tums products may affect the absorption of some other medicines. Tell your health care provider about all medicines that you take or have recently taken.

Tums Chewy Bites + Sleep Support contains melatonin. Melatonin can affect your alertness or coordination. Do not drive or do other activities that require alertness or coordination until you know how Tums Chewy Bites + Sleep Support affects you. If you take any medicine that can cause dizziness or sleepiness, such as prescription pain medicines, sleep medicines, or medicines for anxiety, talk to your health care provider before taking Tums Chewy Bites + Sleep Support. 

If you are pregnant or breastfeeding, talk to your health care provider before taking any Tums products. Your health care provider can let you know which product or how much you should take.

There may be side effects, additional warnings, and interactions with medicines that are not listed here. These may vary depending on the combination of ingredients in the specific Tums product you are using. Always check the label before taking any over-the-counter medicine. Do not take more than the recommended dose. Talk to your doctor or pharmacist about your health conditions and other medicines to help determine which products are safe for you.

Relief from heartburn, acid indigestion, and sour or upset stomach

Products

Key Features

Tums Chewy Bites

  • contains calcium carbonate 750 mg
  • for ages 12 years and older
  • chew 2 to 4 tablets as needed for symptoms
  • do not take more than 6 chewable tablets in 24 hours

Tums Smoothies

  • contains calcium carbonate 750 mg
  • for ages 12 years and older
  • chew 2 to 3 tablets as needed for symptoms
  • do not take more than 7 chewable tablets in 24 hours

Tums Sugar-Free

  • contains calcium carbonate 750 mg
  • for ages 12 years and older
  • chew 2 to 3 tablets as needed for symptoms
  • do not take more than 7 chewable tablets in 24 hours

Tums Extra Strength 

  • contains calcium carbonate 750 mg
  • for ages 12 years and older
  • chew 2 to 4 tablets as needed for symptoms
  • do not take more than 10 chewable tablets in 24 hours

Tums Chewy Bites Cooling Sensation

  • contains calcium carbonate 1000 mg
  • for ages 12 years and older
  • chew 2 to 3 tablets as needed for symptoms
  • do not take more than 7 chewable tablets in 24 hours

Tums Naturals

  • contains calcium carbonate 1000 mg
  • for ages 12 years and older
  • chew 2 to 3 tablets as needed for symptoms
  • do not take more than 7 chewable tablets in 24 hours

Tums UItra Strength

  • contains calcium carbonate 1000 mg
  • for ages 12 years and older
  • chew 2 to 3 tablets as needed for symptoms
  • do not take more than 7 chewable tablets in 24 hours

Tums Chewy Delights

  • contains calcium carbonate 1177 mg
  • for ages 12 years and older
  • chew 2 to 3 tablets as needed for symptoms
  • do not take more than 6 chewable tablets in 24 hours

Tums Gummy Bites

  • contains tricalcium phosphate 1266 mg
  • for ages 12 years and older
  • chew 2 gummy bites as needed for symptoms

Relief from heartburn, acid indigestion, sour or upset stomach, and gas

Products

Key Features

Tums + Gas Relief

  • contains calcium carbonate 750 mg + simethicone 80 mg
  • for ages 12 years and older
  • chew 1 to 2 tablets as needed for symptoms
  • do not take more than 6 chewable tablets in 24 hours

Relief from heartburn, acid indigestion, sour or upset stomach, and nausea

Products

Key Features

Tums + Gummy Bites Upset Stomach & Nausea Support

  • contains tribasic calcium phosphate 1266 mg + ginger root extract 50 mg
  • for ages 12 years and older
  • chew 3 gummy bites as needed for symptoms

Relief from heartburn and sleeplessness

Products

Key Features

Tums + Chewy Bites Sleep Support

  • contains calcium carbonate 600 mg + melatonin 5 mg
  • for ages 18 years and older
  • chew 2 tablets before bedtime as needed