Reviewed by Dr. Younghun Cho, PharmD
Tums scores highly due to its proven effectiveness, rapid action, and accessibility for occasional heartburn relief, balanced by its limitations for chronic use and potential drug interactions.
Pharmacist's Verdict
Tums is a reliable and fast-acting over-the-counter antacid that works well for quick relief of occasional heartburn and indigestion, but it's not meant for daily or long-term use.
Ingredient Analysis
Details pending pharmacist review.
Pros & Cons
Pros
- Provides very fast relief for occasional heartburn and upset stomach by neutralizing stomach acid.
- Widely available and generally affordable, making it an accessible option for many.
- Can be used by pregnant individuals, but always follow the doctor's advice on dosage and duration.
- The active ingredient, calcium carbonate, also provides a small amount of dietary calcium.
Cons
- Only offers temporary relief and does not address the underlying cause of frequent heartburn.
- Can cause constipation in some people, especially with higher doses.
- Interacts with many common prescription drugs, including certain antibiotics, thyroid hormones, and iron supplements, reducing their absorption.
- Taking too much (more than 6 tablets in 24 hours) or using it for more than two weeks can lead to too much calcium in the body, which can be harmful.
Safety Information
Warnings
Warnings Ask a doctor or pharmacist before use if you are presently taking a prescription drug. Antacids may interact with certain prescription drugs. When using this product • do not take more than 6 tablets in 24 hours • if pregnant do not take more than 6 tablets in 24 hours • do not use the maximum dosage for more than 2 weeks, except under the advice and supervision of a doctor Keep out of reach of children.
Is Tums safe for you?
See pregnancy, interactions, and common concerns answered in our pharmacist safety FAQ.
Read safety review →References
- 1.FDA Drug Label — EMF Protect and Balance
FDA DailyMed: EMF Protect and Balance · FDA
- 2.FDA Drug Label — Tums Chewy Bites Orange and Cream ES
FDA DailyMed: Tums Chewy Bites Orange and Cream ES · FDA
- 3.Ocean acidification: the other CO2 problem.
Doney SC, Fabry VJ, Feely RA, et al., Annual review of marine science, 2009 · PubMed
- 4.Hypoparathyroidism.
Gafni RI, Collins MT, The New England journal of medicine, 2019 · PubMed
- 5.A review of biomineralization in healing concrete: Mechanism, biodiversity, and application.
Zhang J, Deng J, He Y, et al., The Science of the total environment, 2024 · PubMed
- 6.Calcium Carbonate.
Al Omari MM, Rashid IS, Qinna NA, et al., Profiles of drug substances, excipients, and related methodology, 2016 · PubMed