FDA Approves First Generic Screwworm Treatment for Pets

FDA just approved nitenpyram, a generic drug, for treating New World screwworm in dogs and cats — the first time a generic has been cleared for this flesh-eating parasite. Originally approved in 2000 for fleas under the brand Capstar, it’s now being used in emergency mode due to the urgent threat. These maggots burrow into open wounds, feeding on live tissue, and can infect pets, wildlife, and even humans. Studies show the drug effectively kills most larvae, though vets may still need to remove any remaining ones. A second dose is often needed six hours later, but the drug’s short duration means it won’t prevent new infestations. Once a major cattle pest, the screwworm has reappeared in Texas and even a dog in New Mexico — a growing concern demanding swift action. Support the show:Get a discount at https://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/e866303d1a912277