Used for Dementia

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Manufactured by Allergan

*You can pay as little as $0 per fill using Drug Coupons or Patient Assistance Programs. Subject to applicability & eligibility requirements.

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NAMENDA XR Uses, Side Effects, Interactions, Warnings & Dosing



NAMENDA XR is the brand name for memantine and is available as an extended-release capsule.

What dosages is NAMENDA XR available in?

What dosages is NAMENDA XR available in?

NAMENDA XR is available as a 7 mg, 14 mg, 21 mg, 28 mg extended-release tablet.

What is NAMENDA XR used for?

What is NAMENDA XR used for?

NAMENDA XR is a NMDA antagonist and is used to treat moderate-to-severe dementia related to Alzheimer’s disease (AD).

How does NAMENDA XR work?

How does NAMENDA XR work?

NAMENDA XR is an NMDA (N-methyl-D-aspartate) antagonist. It works by lowering the activity of certain chemical messengers in your brain that are overly active in people with Alzheimer’s disease (AD). In doing so, it prevents these chemical messengers from causing further nerve damage in the brain. As a result, NAMENDA XR slows the worsening of memory loss linked to AD.

How do I take NAMENDA XR?

How do I take NAMENDA XR?

NAMENDA XR is typically started at 7 mg by mouth once daily. Your provider will slowly raise your dose once a week until you reach the recommended maintenance dose of 28 mg once daily.

Is it safe for me to take NAMENDA XR?

Is it safe for me to take NAMENDA XR?

NAMENDA XR is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you have a known hypersensitivity to memantine hydrochloride or to any excipients used in the formulation.

NAMENDA XR Common Side Effects

NAMENDA XR Common Side Effects

Common side effects of NAMENDA XR:

  • Dizziness
  • Headache
  • Confusion
  • Diarrhea
  • Constipation
NAMENDA XR Serious Side Effects

NAMENDA XR Serious Side Effects

Serious side effects are rare with NAMENDA XR.

Effects of other drugs, drug classes and over-the-counter products on NAMENDA XR

Effects of other drugs, drug classes and over-the-counter products on NAMENDA XR

The following medications may interact with NAMENDA XR:

  • Drugs that make the urine alkaline: Alterations of urine pH towards the alkaline condition may lead to an accumulation of the drug with a possible increase in adverse effects. Urine pH is altered by diet, drugs (e.g. carbonic anhydrase inhibitors, sodium bicarbonate) and clinical state of the patient (e.g. renal tubular acidosis or severe infections of the urinary tract)
Who makes NAMENDA XR?

Who makes NAMENDA XR?


Is NAMENDA XR safe in pregnancy?

Is NAMENDA XR safe in pregnancy?

There are no adequate and well-controlled studies of memantine in pregnant women. NAMENDA XR should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.


What to do if you missed your NAMENDA XR dose

The FDA's medical product safety reporting program for health professionals, patients and consumers.

Learn more about reporting side effects
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NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

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