My Mom had been using the Excelon patches for a few months, There was no difference in her memory while wearing these patches. I know that even though there is no change in memory it does slow the progession down of the disease, but the patches cost over $200.00 Per Month and her insurance did not cover the medication. I don't know yet if Namenda is covered by her insurance but until I find out I was just wondering if anyone could tell me the cost of Namenda. Thanks for any advice someone could give me about this medication.