United States v. 9/1 Kg. Containers, More or Less, of an Article of Drug for Veterinary Use

EASTERBROOK, Circuit Judge.

No one may sell a new animal drug, or feed containing a new animal drug, without the approval of the Food and Drug Administration. 21 U.S.C. § 360b. Obtaining approval takes a long time and costs a lot of money, for the FDA requires thorough experimentation to determine both the drug’s effects on animals and whether its residues persist in the animals and enter the food chain. A drug that leaves potentially-dangerous residues will not be approved. Scientists’ ability to determine the long-range effects of many chemical substances is limited; that lack of knowledge,…