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FDA expands animal drug options for New World screwworm treatment and prevention

Apr 15, 2026

The FDA has expanded animal drug options for New World screwworm through conditional approvals and emergency use authorizations. The agency lists products for cattle, dogs and cats and says its guidance page will be updated as more drugs move through the system.

FDA Issues Emergency Use Authorizations for NexGard Products to Treat Screwworm in Pets

Feb 19, 2026

The U.S. Food and Drug Administration issued two Emergency Use Authorizations on February 18, 2026, for NexGard products to treat New World screwworm infestations in dogs and cats.