Namenda, known generically as memantine, is a prescription medication used to treat some symptoms of Alzheimer’s disease. Namenda does not cure Alzheimer’s; however, it may delay the progression of the disease. Namenda is generally well tolerated by Alzheimer’s patients. A number of side effects may occur in response to Namenda and should be understood by people using Namenda, as well as those caring for Namenda patients.
High Blood Pressure
Drugs.com explains that hypertension, or high blood pressure, occurs as a side effect in about four percent of patients taking Namenda. Peripheral artery disease, chest pain and sudden death have also been reported in Namenda users. MayoClinic.com recommends that patients experiencing symptoms of high blood pressure, such as chest pains, rapid heart beat and bloating in the arms or legs, seek medical attention.
Headache and Dizziness
Dizziness and headache are commonly reported by individuals using Namenda. Drugs.com reports that six to seven percent of people taking Namenda will experience headache and dizziness side effects. Prescribing information provided by Namenda.com explains that general confusion, drowsiness and hallucinations can also occur as side effects to Namenda use. While these side effects are typically mild, they may be the sign of a dangerous reaction to Namenda and should be reported to a physician.
Constipation
Mild gastrointestinal side effects can occur with a Namenda prescription. About five percent of Namenda users will experience constipation, according to Drugs.com. About three percent of patients will experience nausea and vomiting.
Muscle Pain
Musculoskeletal pains, particularly back pain, are reported by about three percent of Namenda patients, notes Drugs.com. Back pain is a mild side effect of Namenda use and typically subsides once the body adjusts to Namenda. Individuals experiencing persistent back or muscle pain should discuss such issues with a physician.
Shortness of Breath
The Physician’s Desk Reference lists shortness of breath as a side effect of Namenda. Drugs.com explains that about four percent of Namenda users will experience coughing as a side effect of Namenda, while about two percent will develop shortness of breath.
Kidney and Liver Failure
Drugs.com explains that both kidney and liver failure have been observed as side effects to Namenda. Patients who experience any unusual urinary symptoms, such as dark-colored urine or decreased urinary output, should consult a doctor immediately. Yellowing of the skin or eyes may be a sign of jaundice or liver failure and should be reported to a physician as soon as possible.
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