FDA Issues Emergency Use Authorization for Drug to Treat New World Screwworm in Dogs and Puppies
· Texas Border Business

The FDA has granted Emergency Use Authorization for Simparica TRIO, a chewable tablet for dogs and puppies, to treat infestations of New World screwworm (NWS). While most U.S. dogs are at low risk, those in or traveling to affected areas should be monitored for signs of infestation. The FDA emphasizes the importance of awareness and consultation with veterinarians. Simparica TRIO, approved in 2020 for other parasitic issues, is available only by prescription due to potential neurological side effects. This authorization will remain in effect until revoked or the public health emergency is terminated.
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