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  • Generic Name: (memantine hydrochloride)
    Other Brands:
  • Last Revised: 01/2014
    • What is this medication and its most common uses?

      Namenda is a medicine used to treat moderate to severe dementia (an illness involving confusion, loss of memory, and impaired judgment) in people with Alzheimer's disease. Namenda is available as tablets and an oral solution.

    • What should I know when beginning and continuing on this medication?

      How does this medication work?

      Namenda works by decreasing abnormal activity in the brain, thereby helping to improve your symptoms of Alzheimer‘s disease.

      What are the beneficial effects of this medication and when should I begin to have results?

      What: Namenda has been shown to improve day-to-day function, including a person's ability to eat, dress, bathe, telephone, travel, shop, or perform other household chores, as well as help with cognition, which includes elements of attention, memory, and social interaction.

      When: Everyone responds differently to treatment, so try to be patient and follow your healthcare provider's directions. It is important that you take Namenda exactly as your healthcare provider has prescribed.

      How do I know it is working?

      You or your caregiver may notice an improvement in your condition. Your healthcare provider may ask you or your caregiver a series of questions from time to time that will help assess how well your symptoms are controlled with treatment.

    • What are the possible side effects of this medication?

      The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.

      More common side effects may include: dizziness, headache, confusion, constipation.

      Less common side effects may include:

      Certain medical conditions may affect the amount of Namenda in your body and possibly increase the risk of side effects. Talk to your healthcare provider if you have renal tubular acidosis (a disease that occurs when the kidneys fail to excrete acids into the urine, which causes a person's blood to remain too acidic) or a severe urinary tract infection.

    • Who should not take this medication?

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

    • What should I tell my healthcare provider before I take the first dose of this medication?

      Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Namenda. Also, talk to your healthcare provider about your complete medical history, especially if you have liver or kidney problems.

    • What is the usual dosage?

      The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.

      Adults: The recommended starting dose is 5 milligrams once a day. Your healthcare provider may increase your dose as needed, until the desired effect is achieved.

      If you have severe kidney impairment, your healthcare provider may adjust your dose appropriately.

    • How should I take this medication?

      Take Namenda exactly as prescribed by your healthcare provider. Do not change your dose or stop taking Namenda without first talking to your healthcare provider.

      Take Namenda with or without food.

      Take Namenda oral solution with the dosing device that comes with the medicine. It consists of a syringe, syringe adaptor cap, tubing, and other supplies you need to take Namenda oral solution.

      Use the supplied syringe to withdraw the prescribed amount of the medicine and slowly squirt the liquid into the corner of your mouth, as directed by your healthcare provider.

      You and your caregiver should review the instructions that came with your prescription on how to properly take Namenda oral solution.

    • What should I avoid while taking this medication?

      Do not mix Namenda oral solution with any other liquid.

    • What are the possible food and drug interactions associated with this medication?

      If Namenda is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your healthcare provider before combining Namenda with the following: amantadine, carbonic anyhydrase inhibitors (such as acetazolamide or methazolamide), cimetidine, dextromethorphan, hydrochlorothiazide, ketamine, metformin, nicotine, quinidine, ranitidine, or sodium bicarbonate.

    • May I receive this medication if I am pregnant or breastfeeding?

      The effects of Namenda during pregnancy and breastfeeding are unknown. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

    • What should I do if I miss a dose of this medication?

      If you miss a single dose of Namenda, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

      If you miss several doses of Namenda, contact your healthcare provider before taking your next dose.

    • How should I store this medication?

      Store at room temperature.

    • Who should I contact in case of emergency or overdose?
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      In the event of a medical emergency call your doctor or 9-1-1 immediately. In the event of overdose, call your doctor or poison control for further instructions.
      National Poison Control#: Call 1-800-222-1222

      This PDR+ drug information has been developed by the Physicians’ Desk Reference Network (PDRN), a source of medication information trusted by doctors for over 65 years.

      This monograph summarizes the most important information about your medication and does not cover all the information you may need. If you have any questions or concerns or want to learn more about your medication, ask your healthcare provider; he/she will be able to provide answers to your questions. This medication should only be used by the patient for whom it was prescribed and should not be shared with other people.
    • Additional patient resources.
      back to top Use your PDR® Pharmacy Discount Card when you or a family member fills a prescription and ask for your PDR® Discount every
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    This discount plan is NOT insurance or a Medicare prescription drug plan. The plan is not intended as a substitute for insurance and does not meet creditable coverage requirements under state or federal law. The plan provides discounts at participating pharmacies on certain pharmaceutical supplies, prescription drugs, or medical equipment and supplies. The range of discounts will vary depending on the products received. Members are obligated to pay the pharmacy the entire amount of the discounted rate for such products at the point of sale. The plan does not pay pharmacies for products provided to members. No enrollment or periodic fees apply. The pharmacy may pay the plan a fee from amounts the pharmacy collects from the member. The discount plan organization is ProCare Pharmacy Benefit Manager, Inc.,1267 Professional Parkway, ProCare Office Park, Gainesville, GA 30507, 1-888-299-5383. Customer service is provided by PDR, LLC., 5 Paragon Drive, Montvale, NJ, 07645, 1-800-232-7379, www.pdr.net/DiscountCard, customerservice@pdr.net.