Here’s what patients and their caregivers should know. After the FDA approved a controversial new Alzheimer’s drug, doctors have been fielding lots of questions about it from patients and their caregivers. The drug, called Aduhelm and made by Biogen, removes amyloid, a sticky substance in the brain that is a defining feature of Alzheimer’s disease. But some doctors say it’s unclear whether removing amyloid will actually slow the progression of the disease. Clinical trials yielded mixed results. On Thursday, Biogen […]