Commissioner Miller Praises FDA’s Emergency Authorization of New Screwworm Treatment for Dogs
October 30, 2025 – AUSTIN, Texas — Texas Agriculture Commissioner Sid Miller is commending the U.S. Food and Drug Administration (FDA) for issuing the first-ever Emergency Use Authorization (EUA) for an animal drug, calling it “a major win for animal health and the American people.”
The authorization, announced this week, allows veterinarians to use a new treatment targeting New World screwworm (NWS) infestations in dogs. The parasitic larvae, which burrow into the flesh of animals, pose a severe threat to both domestic pets and livestock.
Credelio is a brand of prescription-only, chewable oral medication used for the treatment and prevention of flea and tick infestations in dogs and cats.
“This is exactly the kind of no-nonsense leadership Texans can count on,” Commissioner Miller said in a statement Wednesday. “I’m proud to see the FDA, under the steady hand of Commissioner Makary and the leadership of HHS Secretary Robert F. Kennedy Jr., making history by issuing the first-ever Emergency Use Authorization for an animal drug.”
The newly authorized treatment, which can be administered to both adult dogs and puppies, is expected to be deployed immediately to veterinarians in southern states, where screwworm cases occasionally emerge.
Miller praised the Trump administration for acting “decisively” to protect both family pets and agricultural livelihoods. “The New World screwworm is a dangerous pest, but with the strong leadership of the Trump Administration and hardworking folks back home, Texas agriculture will come out stronger than ever,” Miller said.
The New World screwworm, once eradicated in the U.S., remains a recurring threat through imported animals and wildlife migration from Latin America. Federal and state agriculture officials have long considered it a top-tier biosecurity concern.
More details about the FDA’s emergency authorization and distribution guidance for veterinarians are expected in the coming days.
