---
title: "Elanco wins FDA emergency authorization for Negasunt against New World screwworm in livestock"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/284275948.md"
description: "Elanco has received FDA Emergency Use Authorization for Negasunt Powder to combat New World screwworm infestations in livestock. Additionally, the EPA has granted a Section 18 emergency exemption for Tanidil to manage these infestations in animal wounds. These measures are in response to reported cases near the U.S.-Mexico border, with distribution managed through the USDA APHIS National Veterinary Stockpile. The Tanidil exemption is effective from April 27, 2026, to April 27, 2029."
datetime: "2026-04-27T22:24:40.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/284275948.md)
  - [en](https://longbridge.com/en/news/284275948.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/284275948.md)
---

# Elanco wins FDA emergency authorization for Negasunt against New World screwworm in livestock

-   Elanco received FDA Emergency Use Authorization for Negasunt Powder to prevent or treat New World screwworm infestations in livestock. \* EPA granted a Section 18 emergency exemption, in coordination with USDA, for Tanidil to control New World screwworm in animal wounds. \* Authorizations aim to ready veterinarians, producers for potential U.S. incursion, with cases reported 62 miles south of U.S.-Mexico border. \* Negasunt, Tanidil distribution will run through USDA APHIS National Veterinary Stockpile. \* Tanidil exemption takes effect April 27, 2026, expires April 27, 2029. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Elanco Animal Health Inc. published the original content used to generate this news brief via PR Newswire (Ref. ID: 202604271823PR\_NEWS\_USPR\_\_\_\_\_DE44603) on April 27, 2026, and is solely responsible for the information contained therein. © Copyright 2026 - Public Technologies (PUBT)

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