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Generic Name: memantine

It is used to treat dementia caused by Alzheimer's disease.
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What is this medicine?

MEMANTINE (MEM an teen) is used to treat dementia caused by Alzheimer's disease.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • difficulty passing urine
  • kidney disease
  • liver disease
  • seizures
  • an unusual or allergic reaction to memantine, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. You may take this medicine with or without food. Take your doses at regular intervals. Do not take your medicine more often than directed. Continue to take your medicine even if you feel better. Do not stop taking except on the advice of your doctor or health care professional.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

  • acetazolamide
  • amantadine
  • cimetidine
  • dextromethorphan
  • dofetilide
  • hydrochlorothiazide
  • ketamine
  • metformin
  • methazolamide
  • quinidine
  • ranitidine
  • sodium bicarbonate
  • triamterene

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular checks on your progress. Check with your doctor or health care professional if there is no improvement in your symptoms or if they get worse.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol can make you more drowsy and dizzy. Avoid alcoholic drinks.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • agitation or a feeling of restlessness
  • depressed mood
  • dizziness
  • hallucinations
  • redness, blistering, peeling or loosening of the skin, including inside the mouth
  • seizures
  • vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • constipation
  • diarrhea
  • headache
  • nausea
  • trouble sleeping

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature between 15 degrees and 30 degrees C (59 degrees and 86 degrees F). Throw away any unused medicine after the expiration date.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.


All visitors to AARP.org should seek expert medical care and consult their own physicians for any specific health issues. Read this disclaimer in its entirety.
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Note: This information is not intended to cover all possible uses, precautions, interactions, or adverse effects for this drug. If you have question about the drug(s) you are taking, check with your health care professional.
 
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