FDA Conditionally Approves New Topical Treatment for Screwworm and Cattle Fever Tick The Food and Drug Administration (FDA) has announced the conditional approval of a new topical medicine designed to help protect U.S. cattle from two serious parasitic threats. Exzolt Cattle-CA1 has been approved for the prevention and treatment of larval infestations of New World Screwworm (NWS) and is also …
