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Prescription Drug Coverage

Memantine (Namenda) Medicare Coverage

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

Brand name: Namenda

Typical dosage: 10mg

Typical type: Tablet1

Memantine is a medication used to treat Alzheimer’s disease. Memantine is available as a brand name or as a generic and comes as an oral tablet, oral liquid or oral capsule.

Memantine is a medication used to treat moderate to severe dementia associated with Alzheimer’s disease. The brand name equivalent of Memantine is called Namenda.

Memantine is an inhibitor of a receptor in the brain called NMDA. Memantine prevents too much calcium from entering brain cells.

Memantine comes as an immediate release tablet and liquid and as an extended release capsule form. It is typically taken 1-2 times daily.

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Common side effects of Memantine include dizziness, headache, constipation and diarrhea.

Does Medicare cover Memantine or Namenda?

Yes! 100% of Medicare Advantage plans and Medicare Part D plans cover Memantine.1

  • Medicare Advantage plans that offer prescription drug coverage are called Medicare Advantage Prescription Drug Plans (MA-PD). Most Medicare Advantage beneficiaries (88 percent) are enrolled in MA-PDs.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 Memantine.

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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

Average costs for Memantine with Medicare drug coverage1

Your copay and deductible costs for any prescription drug can vary depending on what coverage stage you’re in.

Deductible stage Typical copay stage
Your deductible is the amount of money you must spend on covered drugs before your Medicare drug coverage starts paying its share of costs.

In the deductible stage, you’re responsible for the full cost of your prescription drugs.

Some Medicare prescription drug plans have a $0 deductible. Medicare drug plans cannot have a deductible more than $480 in 2022.
After you meet your Part D deductible, you enter the initial coverage period.

During this phase (the typical copay stage), you pay a copayment (flat fee) or coinsurance (percentage) for your covered medications.
Free – $298 Free – $96

Additional information

If you are using the extended-release capsules and cannot swallow them, the contents of the capsule can be sprinkled on applesauce. If you do this, swallow the mixture immediately without chewing it.

All types of Memantine can be taken with or without food. If you experience upset stomach, taking it with food may help.

Talk to your doctor if you have any confusion or worsening signs of dementia.



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.