Compare Tagamet vs. Tums

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Tagamet (cimetidine)

Prescription or OTC

Tums (Calcium carbonate)

Over-the-counter

Treats heartburn.

Tagamet (cimetidine) works well for heartburn, but may have more side effects than other medicines like it.

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3.4/ 5 average rating with 632 reviewsforTagamet

Relieves heartburn.

Tums (Calcium carbonate) gives quick relief for heartburn, but does not last all day. Talk to your doctor or pharmacist about other medicines if you need additional relief.

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3.8/ 5 average rating with 1373 reviewsforTums

Upsides

Lasts longer than other medicines like it so you may not need to take it as frequently.
Affordable as an over-the-counter or generic medicine.

Tums (Calcium carbonate) is an effective, first-line medication for hearburn.
Tums (Calcium carbonate) starts working in seconds.
Has minimal side effects.
Available in chewable form.
Is inexpensive and readily available over-the-counter.
Coupons are available – speak to your doctor or pharmacist.

Downsides

Does not work as fast as antacids like Maalox, Tums, or Rolaids.
May not work as well if you have an inflammed esophagus. Your doctor will assess which medicine is best for you.
May not be the best option if you are elderly or have kidney or liver problems.
Can interfere with how other medicines work.

Because Tums (Calcium carbonate) only lasts for 1 to 2 hours, you may need additional doses.
May increase calcium levels too much in people with kidney or thyroid conditions.
May have a chalky taste.

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