Product Quality and Safety Assessments

We responsibly test our investigative Animal Health pharmaceuticals and vaccines vigorously for safety, quality and efficacy before submitting them for approval, which can be obtained only after thorough review by independent regulatory authorities.

Business Development

We partner with like-minded companies to develop products and solutions that directly address unmet customer needs and further advance animal health.

Aqua

Industry-leading biopharmaceutical and technology solutions that ensure the health, welfare and sustainability of aquatic species. 

Ruminants

Pioneering medicines, vaccines, technology, and insights-driven solutions that aim to improve the health and well-being of ruminants, enable a sustainable meat and dairy supply, and protect public health.

Poultry

Innovative products and solutions that make a difference, improving poultry health, welfare, and productivity.

Swine

Differentiated health solutions focused on improving swine health and farm sustainability.

Equine

Solutions that help maintain and improve the health and welfare of horses.

Our Story

Today, we develop breakthrough medicines, vaccines and technology that improve the health and well-being of animals worldwide.

Contact Us

For information about Merck Animal Health’s products and services including the reporting of an adverse event or product quality complaint with a specific Merck Animal Health product

Research and Innovation

At Merck Animal Health, our scientists and experts are constantly searching for ways to advance the state of veterinary medicine and animal health.

Homepage

Merck Animal Health – Information on veterinary products, technologies and veterinary services that truly advance animal healthcare.

News Releases

Mexico’s SADER Approves Merck Animal Health’s EXZOLT® 5% Pour-On (Fluralaner 50 mg/mL) for the Prevention and Treatment of New World Screwworm (Cochliomyia hominivorax) Larvae (Myiasis)

Veterinarians and cattle producers in Mexico have access to a new tool to protect cattle from New World Screwworm, helping to safeguard Mexico’s beef supply RAHWAY, N.J., November 4, 2025 – Merck Animal Health, known as MSD Animal Health outside of the United States and Canada, a division of Merck & Co., Inc., Rahway, N.J