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 MSD Animal Health’s products and services including the reporting of an adverse event or product quality complaint with a specific MSD Animal Health product.

Research and Innovation

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

Homepage

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

News Releases

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

MSD Animal Health, a division of MSD & Co., Inc., Rahway, N.J., USA (NYSE:MRK), today announced the Mexico’s SADER Approval of EXZOLT® 5% Pour-On (Fluralaner 50 mg/mL) for the Prevention and Treatment of New World Screwworm (Cochliomyia hominivorax) Larvae (Myiasis)

Featured Stories

Enhancing Multivalent Inactivated Vaccines for Long-Living Birds

Poultry is a cornerstone of global food security. It provides affordable, high-quality protein in the form of both meat and eggs, feeding billions of people worldwide.

News Releases

New Data from MSD Animal Health Demonstrates that Intranasal Vaccination Against Bovine Coronavirus with BOVILIS® NASALGEN®-C (Lyophilisate and Solvent for Suspension for Cattle) Significantly Improves Production in Veal Calves

MSD Animal Health, a division of Merck & Co., Inc., Rahway, N.J., USA (NYSE:MRK), today announced the presentation of new data in support of intranasal vaccination for the prevention of bovine coronavirus (BCoV) with BOVILIS® NASALGEN®-C. These data were presented at the Vlaamse Buiatriecongres 2025 (the Flemish Buiatrics Congress), October 23-24.

News Releases

MSD Animal Health Presents New Data Demonstrating the Safety, Efficacy and Quick Onset of Injectable Formulation of BRAVECTO® (fluralaner) at World Small Animal Veterinary Association Congress

Additional educational symposia offer the latest information on vector-borne diseases, infectious diseases and treatment and prevention protocols Rahway, NJ, September 26, 2025 – MSD Animal Health, a division of Merck & Co., Inc., Rahway, N.J., USA (NYSE:MRK), today announced it will present multiple