Many of us new this was coming. Now it's official here in the US. A study sponsored by Forest Laboratories Inc, has proven that the drugs Memantine/Namenda have absolutely no benefit for those with FTD and does not support it's use with FTD.
There was another Namenda study done in Europe and released at the IAFTD conference in Manchester, England in October 2012. I will copy over the message relating to this announcement from Sharon Denny, program director of AFTD.
A multi-site clinical study of Memantine/Namenda use in bvFTD and semantic PPA that took place over the past few years is complete and the data analyzed. It's not published yet, but was the topic of a presentation at the Manchester conference. The study design could only detect large effects, and concluded "there was no benefit of Memantine/Namenda treatment in bvFTD of semantic PPA". That's not to say there aren't individuals who do experience benefit. Like all med/treatment questions there's variability from person to person. AND you should always coordinate med changes with your doctor; he/she will only be able to help over time if it's a partnership.
Aricept is listed as medication to avoid with FTD. You will find a link to the UCSF article listing Aricept and other medications to avoid under "links" on the right side of this page.