Generic name: Memantine Solution [ me-MAN-teen ]
Brand name: Namenda
Drug class: Miscellaneous central nervous system agents

Medically reviewed by Drugs.com. Last updated on Jan 2, 2024.

Uses of Namenda:

• It is used to treat dementia in people with Alzheimer's disease.

What do I need to tell my doctor BEFORE I take Namenda?

• If you are allergic to Namenda (memantine solution); any part of Namenda (memantine solution); or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had.

This medicine may interact with other drugs or health problems.

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Namenda (memantine solution) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take Namenda?

• Tell all of your health care providers that you take Namenda (memantine solution). This includes your doctors, nurses, pharmacists, and dentists.
• Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.

How is this medicine (Namenda) best taken?

Use Namenda (memantine solution) as ordered by your doctor. Read all information given to you. Follow all instructions closely.

• Take with or without food.
• Keep taking Namenda (memantine solution) as you have been told by your doctor or other health care provider, even if you feel well.
• Measure liquid doses carefully. Use the measuring device that comes with Namenda (memantine solution).
• Do not mix with any liquid.

What do I do if I miss a dose?

• Skip the missed dose and go back to your normal time.
• Do not take 2 doses at the same time or extra doses.
• If you miss taking Namenda (memantine solution) for a few days in a row, call your doctor before you start taking it again.

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

• Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
• Feeling confused.

Related/similar drugs

donepezil, memantine, Aricept, rivastigmine, galantamine, Exelon

What are some other side effects of Namenda?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

• Dizziness.
• Headache.
• Diarrhea or constipation.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-332-1088. You may also report side effects at https://www.fda.gov/medwatch.

If OVERDOSE is suspected:

If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

How do I store and/or throw out Namenda?

• Store at room temperature in a dry place. Do not store in a bathroom.
• Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
• Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.

Consumer Information Use and Disclaimer

• If your symptoms or health problems do not get better or if they become worse, call your doctor.
• Do not share your drugs with others and do not take anyone else's drugs.
• Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Namenda (memantine solution), please talk with your doctor, nurse, pharmacist, or other health care provider.
• If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Frequently asked questions

• What are 4 key Namenda side effects to watch out for?
• How does Namenda work?

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer