Does anyone have experience (positive or negative) with Namenda? I just changed doctors and the new one ( headache specialist) seems so much better then the last. He's taking me off topamax which hasn't been as beneficial as it could have been (maybe cut down the intensity but of that I can't be sure). I started the namenda a week ago and am hopeful I'm seeing a difference, although I had to leave work cause a wicked migraine. Please let me know if you have any experience with this drug, as I don't think it's commonly used but is being used more now for chronic migraine. Thanks. Laurie