Two years ago, in Nexus Pharmaceuticals, Inc. v. Central Admixture Pharmacy Services, Inc., 48 F.4th 1040 (9th Cir. 2022), the Ninth Circuit held that the FDCA impliedly preempts private suits brought under state statutes that “rel[y] on the [FDCA], not traditional state tort law theory,” to define state-law requirements. We were so pleased with…