Aduhelm is the brand name under which the Alzheimer’s drug Aducanumab is marketed. It is developed by the U.S. company Biogen. The drug is to be administered as an intra-venous infusion every four weeks.

The Food and Drug Administration (FDA) approved Aducanumab in June 2021, making it the first Alzheimer’s disease medication approved by the FDA since 2003. It is also the first ever approved Alzheimer’s drug targeting the presence of amyloid beta (a type of protein) plaques in the brain.

However, almost everything about this drug is controversial, from the theory on which the drug is developed, to its clinical trials data, to the FDA approval itself. This article aims to distill the complicated information down to a few points, which might help patients make more informed decisions.