Memantine (Systemic)

Brand Names : Namenda

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Less common

Bloating or swelling of face, arms, hands, lower legs, or feet; blurred vision; dizziness; headache; nervousness; pounding in the ears; rapid weight gain; slow or fast heartbeat; tingling of hands or feet; unusual weight gain or loss

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome.

More Common

Confusion

Less common

Anxiety; back pain; bladder pain; bloody or cloudy urine; change in walking and balance; chills; clumsiness or unsteadiness; cough producing mucus; coughing; difficult, burning, or painful urination; difficulty breathing; difficulty moving; difficulty having a bowel movement (stool); diarrhea; discouragement; dry mouth; fear; feeling sad or empty; fever; frequent urge to urinate; general feeling of discomfort or illness; hyperventilation; insomnia; irregular heartbeats; irritability; joint pain; loss of appetite; loss of bladder control; loss of interest or pleasure; lower back or side pain; muscle pain or stiffness; nausea; nervousness; pain; pain in joints; restlessness; seeing, hearing, or feeling things that are not there; shortness of breath; sleepiness or unusual drowsiness; sore throat; tightness in chest; tiredness; trouble concentrating; trouble sleeping; unusual tiredness or weakness; vomiting; wheezing

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.