The FDA granted emergency use authorization for an over-the-counter nitenpyram tablet to treat New World screwworm in eligible dogs and cats, marking the first generic animal drug approved for this purpose. Sources agree on the authorization details, minimum animal weight and age requirements, and the drug's rapid action against larvae, while disagreeing on the number of confirmed livestock cases in Texas and New Mexico. The approval follows a decade without U.S. cases and comes amid ten prior emergency approvals for screwworm treatments.