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Namenda XR

Prescription Required
Formulation : Extended Release Capsule
Drug Name Dosage Quantity Price Buy Now
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Namenda XR
Dosage: 7mg
Quantity: 90
Price: $1226.40
Namenda XR
Dosage: 14mg
Quantity: 90
Price: $1231.40
Namenda XR
Dosage: 21mg
Quantity: 90
Price: $1056.40
Namenda XR
Dosage: 28mg
Quantity: 90
Price: $1575.85

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Prescription Required
Formulation : Extended Release Capsule
Drug Name Dosage Quantity Price Buy Now
Memantine 21mg 90 $165.50 Add To Cart
Dosage: 21mg
Quantity: 90
Price: $165.50


Namenda XR is a medication that contains the active ingredient memantine hydrochloride. Namenda XR is used to treat moderate to severe dementia of the Alzheimer’s type.

Namenda XR is an extended-release capsule formulation of memantine, which means it is designed to release the medication slowly over time, allowing for once-daily dosing.

Namenda XR is primarily used for the treatment of moderate to severe dementia in patients with Alzheimer’s disease. It helps to improve cognitive function and slow down the progression of symptoms associated with Alzheimer’s disease.

Use and Dosage

Read the Patient Information Leaflet if available from your pharmacist before you start taking memantine and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication by mouth with or without food as directed by your doctor, usually once daily. Swallow the capsules whole. Do not crush or chew the capsules. Doing so can release all of the drug at once, increasing the risk of side effects. If you have trouble swallowing the capsules whole, the capsule may be opened and the contents sprinkled on applesauce. Swallow all of the drug/food mixture right away without chewing. Do not prepare a supply in advance.

The dosage is based on your medical condition and response to treatment. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor’s instructions carefully.

If switching from another form of memantine to the extended-release form, follow your doctor’s instructions carefully. Do not switch forms of memantine without talking to your doctor first.

Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day.

Side Effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Serious side effects include:

  • Severe headache, blurred vision, or pounding in your neck or ears
  • Seizure (convulsions)
  • Unusual changes in mood or behavior

Common side effects of memantine may include:

  • Diarrhea
  • Dizziness
  • Headache

This is not a complete list of side effects and others may occur.


  • Before taking memantine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
  • Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney problems, severe urinary tract infections, and recent dietary change (from a high-protein diet to a vegetarian diet).
  • This drug may make you dizzy or drowsy. Alcohol or marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
  • Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
  • During pregnancy, this medication should be used only when needed. Discuss the risks and benefits with your doctor.
  • It is unknown if this medication passes into breast milk. Consult your doctor before breast-feeding.

Forms and Strengths

Namenda XR is available in the following forms and strengths:

  • Namenda XR ER Capsule:
    • 7 mg
    • 14 mg
    • 21 mg
    • 28 mg
  • Memantine ER Capsule:
    • 21 mg


What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up for the missed dose.

If you miss doses or forget to take your medicine for several days, call your doctor before starting the medicine again.

What happens if I overdose?

Seek emergency medical attention.

What should I avoid while taking memantine?

Memantine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.



Additional information

Brand Name:

Namenda XR

Scientific Name:


Other Names:

Namenda XR


7mg, 14mg, 21mg, 28mg

Quantities Available:



Extended Release Capsule