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Zoetis Receives Emergency Use Authorization for Simparica Trio® (sarolaner, moxidectin, and pyrantel chewable tablets) for Treatment of New World Screwworm Infestations in Dogs and Puppies

Key Takeaway: Zoetis Inc. has received Emergency Use Authorization from the FDA for Simparica Trio, a treatment for New World screwworm infestations in dogs and puppies. This authorization allows the use of the chewable tablets to combat infestations caused by the larvae of Cochliomyia hominivorax. The treatment aims to protect pets from the harmful effects of these larvae.

Market Sentiment Analysis

POSITIVE FACTORS

  • Emergency Use Authorization granted by the FDA.
  • New treatment option for New World screwworm infestations.
  • Potential to improve animal health in affected dogs and puppies.

Full Press Release Details

PARSIPPANY, N.J.--(BUSINESS WIRE)---- $ZTS #animalhealth--Zoetis Inc. today announced that Simparica Trio has received Emergency Use Authorization (EUA) from the U.S. Food and Drug Administration (FDA) for the treatment of infestations caused by New World screwworm (Cochliomyia hominivorax) larvae (myiasis) in dogs and puppies. Larvae of Cochliomyia hominivorax, commonly called New World screwworm (NWS), feed on living tissues, such as open wounds, of animals including livestock, wildlife and pets, and can inflict da

Frequently Asked Questions

What is Simparica Trio used for?

Simparica Trio is used for treating infestations caused by New World screwworm larvae in dogs and puppies.

Who granted the Emergency Use Authorization?

The U.S. Food and Drug Administration (FDA) granted the Emergency Use Authorization.

What is the impact of New World screwworm?

New World screwworm larvae feed on living tissues, causing harm to animals like dogs and livestock.

Is Simparica Trio safe for all dogs?

Simparica Trio is specifically authorized for use in dogs and puppies affected by screwworm infestations.

Last updated: Aug 13, 2026