AdvertisementThe FDA Has Approved A New Alzheimer's Drug — Here's Why That's ControversialUpdated June 07, 2021Scott HensleyJon HamiltonLaurel WamsleyfacebookEmailDr. William Burke goes over a PET brain scan in 2018 at Banner Alzheimer's Institute in Phoenix. The drug company Biogen has received federal approval for a medicine to treat early Alzheimer's disease. (AP)This article was originally published on June 07, 2021.