Nature World News | FDA Approves Second Drug Designed to Help Evaluate for Alzheimer's, Dementia Nature World News Called Vizamyl, the radioactive diagnostic drug works by attaching to the abnormal protein called beta amyloid, found in patients with Alzheimer's. A negative Vizamyl scan, therefore, suggests a person's cause of dementia is not Alzheimer's related ... Sunflowers symbolize hope for Alzheimer's and Dementia Alzheimer's disease prevention: What you need to know ***** New Tool for Dementia Evaluation Approved by FDA |