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FDA Approves Exzolt Cattle-CA1 for Cattle Parasite Treatment

12/9/2025

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Summary

Story summary

U.S. Food and Drug Administration (FDA) has conditionally approved Exzolt Cattle-CA1, a topical solution, to treat New World screwworm and cattle fever tick in beef cattle aged two months and older.
Exzolt Cattle-CA1 will be available starting December 20.
Exzolt Cattle-CA1 carries a 98-day withdrawal period to ensure meat safety.
The FDA notes it should be used only when necessary as part of a broader parasite management strategy.

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Story summary

U.S. Food and Drug Administration (FDA) has conditionally approved Exzolt Cattle-CA1, a topical solution, to treat New World screwworm and cattle fever tick in beef cattle aged two months and older.
Exzolt Cattle-CA1 will be available starting December 20.
Exzolt Cattle-CA1 carries a 98-day withdrawal period to ensure meat safety.
The FDA notes it should be used only when necessary as part of a broader parasite management strategy.