Prescription Drug Coverage

Cimetidine (Tagamet) Medicare Coverage

You may be able to find Medicare plan options in your area that cover Cimetidine (generic Tagamet). Learn more about Cimetidine and find Medicare Advantage plans in your area that cover other prescription drugs.
Chemical name: Cimetidine

Brand name: Tagamet

Typical dosage: 400mg

Typical type: Tablet1

Cimetidine is a medication used to treat stomach ulcers, acid reflux and other conditions. Cimetidine is available as a generic drug and comes as an oral liquid or an oral tablet.

Cimetidine is a medication used to treat or prevent ulcers in the duodenum, ulcers of the stomach, Gastroesophageal reflux disease (GERD) and other conditions where too much acid is secreted.

The brand name equivalent of Cimetidine is called Tagamet.

Cimetidine works by blocking the actions of a chemical called histamine in the stomach cells. This reduces acid secretion to reduce painful symptoms. It is taken 1 to 4 times daily, depending on what you are treating.

Side effects are uncommon with Cimetidine.

How much does Cimetidine cost with Medicare?

Cimetidine coverage and costs may vary based on the specific plan you have, as well as what coverage stage you're in.

Contact your plan carrier or consult your plan formulary for more cost information.

Does Medicare cover Cimetidine?

According to GoodRx, 54% of Medicare Advantage plans and Medicare Part D plans covered Cimetidine in 2023.1

  • Medicare Advantage plans or Part D plans that cover Cimetidine include copay amounts that can range widely from one plan to another. Plan members may also be responsible for meeting a deductible before the plan’s drug coverage kicks in.

  • Medicare Advantage plans that offer prescription drug coverage are called Medicare Advantage Prescription Drug Plans (MA-PD). 89% of 2023 Medicare Advantage plans included prescription drug coverage.2

  • Medicare prescription drugs plans each have their own formulary, or drug list, that details what prescription drugs are covered by the plan and how they are covered.

Drug coverage may vary based on plan availability. You may be able to find Medicare Advantage plan options in your area that cover Cimetidine. We represent carriers such as Humana, UnitedHealthcare®, Anthem Blue Cross and Blue Shield, Aetna, Cigna Healthcare, Wellcare, or Kaiser Permanente.

You can also compare Part D prescription drug plans available where you live and enroll in a Medicare prescription drug plan online when you visit

Additional information

Take Cimetidine with meals and at bedtime as instructed by your doctor. Avoid taking any antacid medications at the same time as Cimetidine. To prevent heartburn, take Cimetidine 30 minutes before eating food or drinking liquids that can cause heartburn.

Liver problems can – but rarely – happen while taking Cimetidine. Signs of liver problems include dark urine, fatigue, upset stomach, vomitting or yellow skin or eyes.

If you are 50 years or older, you may experience more side effects while taking this medication. Watch for signs of confusion, agitation, mood changes or hallucinations. Also talk to the doctor if you experience chest pain, throat pain, signs of bleeding or bad abdominal pain.

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This article is for informational purposes only. It is not healthcare advice, treatment, or diagnosis. It is not an endorsement of or recommendation for this medication. Speak to your doctor or healthcare provider about your specific healthcare needs, including your prescription medications. Only take medication as directed by your doctor.

Coverage and costs of prescription medications will vary by Medicare plan. Not all plans are available in all areas.


Written by Hayden Gharibyar, Pharm.D.

1 GoodRx. Cimetidine. Retrieved October 2023, from

2 Freed M, et al. (Nov 10, 2022). Medicare Advantage 2023 Spotlight: First Look. Kaiser Family Foundation.