Federal law regulates medical devices differently from pharmaceuticals, and branded drugs differently from generic drugs. Whether a particular state-law tort claim is preempted often depends on whether the claim involves a medical device, a branded drug, or a generic drug. Often but not always. As today’s case illustrates, there is one implied-preemption principle that applies

We’ll get to the recent Second Circuit decision, Ignacuinos v. Boehringer Ingelheim Pharms., Inc., — F.4th —-, 2021 WL 3438355 (2d Cir. 2021), in due course, but first some background.

One of our top ten decisions in 2018 was Gustavsen v. Alcon Labs., Inc., 903 F.3d 1 (1st Cir. 2018), an important implied-preemption