Alzheimers Home > Namenda XR Side Effects

Headaches, diarrhea, and dizziness are some of the most common side effects reported with Namenda XR. While reactions to this medication tend to be minor in most cases, some may require immediate medical attention. Notify your healthcare provider right away if you develop problems such as difficulty breathing, hallucinations, or depression.

An Introduction to Namenda XR Side Effects

Just like any medicine, Namenda XR® (memantine XR) can cause side effects. However, not everyone who uses the medication will have problems. Most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Namenda XR. Your healthcare provider can discuss a more complete list with you.)

Common Side Effects of Namenda XR

Namenda XR has been studied extensively in clinical trials. In these studies, the side effects that occurred in a group of people taking Namenda XR were documented and then compared to those that occurred in a similar group of people taking a placebo (a "sugar pill" that does not contain any active ingredients).
Based on these studies, the most common reactions to Namenda XR included:
Other common Namenda XR side effects (occurring in 1 to 3 percent of people) included:
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Last reviewed by: Kristi Monson, PharmD;
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