Expert OpinionPharma/Biotech ClinicalSector Analysis

FDA Grants Conditional Approval For Merck's EXZOLT CATTLE-CA1, First Topical Solution For Screwworm Prevention And Cattle Fever Tick Control

BenzingaDecember 04, 2025 at 5:05 PMFull Content
View Original →

📊 Workflow Status

✓ CompletedCompleted in 17m 29s
clean_raw_article
✓ completed
clean_markdown_article
✓ completed
analyze_article
✓ completed
link_article_to_stories
⊘ skipped
analyze_sentiment
✓ completed
Workflow #2520 • Benzinga Article Processing
Started: 17:06:00 • Completed: 17:23:30
View Details →

Detected Companies & Sentiment

Merck & Co., Inc.
"strong positive momentum"
9

Gist

The FDA has conditionally approved Merck's EXZOLT CATTLE-CA1, the first topical solution in a new class of parasiticides for preventing screwworm and controlling cattle fever ticks in livestock.

LLM Summary

Merck Animal Health announced that the FDA has granted conditional approval for EXZOLT™ CATTLE-CA1, a fluralaner-based topical solution. It is the first product conditionally approved for both preventing New World screwworm infestations and controlling cattle fever ticks. The drug belongs to the isoxazoline class of parasiticides and is administered as a pour-on solution.

Full Article Content

EXZOLT™ CATTLE-CA1 is the first in its class and the only product conditionally approved for both the prevention and treatment of New World screwworm and treatment and control of cattle fever tick

Merck Animal Health, known as MSD Animal Health outside of the United States and Canada, a division of Merck & Co., Inc., Rahway, N.J., USA (NYSE: MRK), today announced the U.S. Food and Drug Administration (FDA) has granted a conditional approval for EXZOLT™ CATTLE-CA1 (fluralaner topical solution). This innovative product is in the newest class of parasiticides known as isoxazolines. The pour-on solution is effective for the prevention and treatment of infestations caused by New World screwworm (Cochliomyia hominivorax) larvae (myiasis). It is also conditionally approved for the treatment and control of cattle fever tick ( Rhipicephalus microplus).

Metadata

Author:
Benzinga Newsdesk
Tickers:
MRK
Updated At:
December 04, 2025 at 1:05 PM
Benzinga Channels:
Biotech, News, FDA, General
Teaser:
EXZOLT™ CATTLE-CA1 is the first in its class and the only product conditionally approved for both the prevention and treatment of New World screwworm and treatment and control of cattle fever tickMerck Animal
Benzinga Stocks:
MRK (NYSE)
Benzinga Article ID:
49213906