Namenda ® or Memantine
Brand Name: Namenda ®

Active Ingredient: Memantine

Strength(s): 5 mg, 10 mg

Dosage Form(s): Tablets

Company Name: Forest Pharmaceuticals, Inc.

Availability: Prescription Only

Date Approved by the FDA: October 16, 2003

What is Namenda used for?

Namenda is for patients with moderate to severe dementia from Alzheimer’s disease.

Who should not take Namenda?

Do not take Namenda if you are allergic to Namenda or any of its ingredients.

What should I tell my health care provider?

Tell your health care provider if you:

• have kidney problems

• have a condition or take other medicines that make your urine alkaline 

• are pregnant, are trying to become pregnant, or are breast-feeding

Tell your health care provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements. Namenda and other medicines may affect each other, causing serious side effects. Especially tell your health care provider if you take:

• medicines called NMDA antagonists such as amantadine (Symmetrel),

• ketamine (Ketalar) and dextromethorphan 

• other medicines that pass out of the body through the kidneys such as hydrochlorothiazide (HCTZ), triamterene (TA), cimeditine (Tagamet), ranitidine (Zantac), quinidine and nicotine

• medicines that make your urine more alkaline such as carbonic anhydrous inhibitors and sodium bicarbonate

What are some possible side effects of Namenda? (This is NOT a complete list of side effects reported with Namenda. Your health care provider or pharmacist can discuss with you a more complete list of side effects.)  

Some common side effects with Namenda include:

• dizziness
• headache
• confusion 
• constipation

For more detailed information about Namenda, ask your health care provider or pharmacist.

Source: United States Food and Drug Administration
This fact sheet provides details on the conditions that Namenda is prescribed for, its potential side-effects, and its interactions with other drugs. Be sure to consult your physician about the proper dosage and safety precautions to keep in mind for this medication.



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This document is provided solely for educational and informational purposes.
Be sure to consult your doctor before making any major medical decision.
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