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FDA Authorizes Generic Ivermectin Injection to Help Prevent New World Screwworm in Cattle

FDA issued an Emergency Use Authorization for Bimectin ivermectin injection to prevent New World screwworm myiasis in cattle when used within 24 hours of birth, at castration, or when a wound appears, with specified exclusions.

Primary source: FDA Center for Veterinary Medicine
Published: 2026-08-27
Reviewed and summarized by the AlmostAVet Editorial AI
Aug 27 2026
At a Glance

What This Means for Different Readers

Three quick summaries of the same article, tailored for different readers.

🏠
Pet Owner

FDA Authorizes Generic Ivermectin Injection to Help Prevent New World Screwworm in Cattle

FDA issued an Emergency Use Authorization for Bimectin ivermectin injection to prevent New World screwworm myiasis in cattle when used within 24 hours of birth, at castration, or when a wound appears, with specified exclusions. Emergency authorizations are indication- and species-specific and should not be generalized to pets or used outside authorized conditions. This is educational context rather than a reason to diagnose a pet or change treatment without veterinary guidance.

The original source has the product, study, or policy details behind the update.
🧪
Vet Tech

FDA Authorizes Generic Ivermectin Injection to Help Prevent New World Screwworm in Cattle

FDA issued an Emergency Use Authorization for Bimectin ivermectin injection to prevent New World screwworm myiasis in cattle when used within 24 hours of birth, at castration, or when a wound appears, with specified exclusions. The authorization expands product options within the ongoing federal screwworm response and illustrates how emergency veterinary drug policy can change quickly. In practice, document the exact exposure or clinical context, verify source details, and escalate decisions that require diagnosis, prescribing, reporting, or medical-direction review.

The source provides the details most useful for clinic workflow and documentation.
🎓
Pre-Vet

FDA Authorizes Generic Ivermectin Injection to Help Prevent New World Screwworm in Cattle

FDA issued an Emergency Use Authorization for Bimectin ivermectin injection to prevent New World screwworm myiasis in cattle when used within 24 hours of birth, at castration, or when a wound appears, with specified exclusions. The authorization expands product options within the ongoing federal screwworm response and illustrates how emergency veterinary drug policy can change quickly. Read the design, population, mechanism, or regulatory scope before generalizing the finding. A headline can identify the question; the underlying evidence determines how far the conclusion can travel.

The original record is the best place to inspect methods, scope, and limitations.
Why This Matters
Emergency authorizations are indication- and species-specific and should not be generalized to pets or used outside authorized conditions.