Largest Animal Pharmas

 Worldwide sales of vaccines, medicines and medical devices for companion animals have exceeded about $8 billion annually with an additional $14 billion in sales of vaccines and medicines for livestock. The following companies generated sales in the billions for animal pharmaceuticals.

According to the Animal Health Institute, an industry trade group, the global market for animal medicines is about one-fortieth of that spent on human medicines. The trade group estimated that today "24 billion chickens, more than 1 billion cattle and sheep, 750 million pigs and goats, 500 million dogs and 400 million cats" worldwide benefit from innovations in animal health.

Animal health drugs require approval from the Food and Drug Administration. According to the Animal Health Institute, the development of a new animal drug can take up to 10 years and cost up to $100 million prior to approval. A new vaccine takes three to five years to develop and averages around $80 million in costs.

Animal health product manufacturers support the FDA approval process through user fees authorized by the Animal Drug User Fees Act (ADUF) and the Animal Generic Drug User Fee Act.


Image: Zoetis Animal Health.

Zoetis develops vaccines, parasiticides, anti-infectives, medicinal feed additives and drugs for pain, ​sedation and cancers for pets and farm animals.

Merck Animal Health

Merck/Invervet's Panacur Equine is a dewormer paste used for controlling strongyles, cyathostome larvae, pinworms and ascarids in horses.

Merck Animal Health manufactures vaccines, anti-infective and anti-parasitic drugs, fertility management drugs and other specialty pharmaceutical products for companion animals and livestock.



Merial develops and markets veterinary products including anesthetics, antiparasitics, antimicrobials, and gastrointestinal, respiratory and cardiovascular medicines. It also produces vaccines for livestock, poultry and pets.

Elanco Animal Health


Elanco develops and markets products to treat animal health and increase protein production. Products include flea protection for dogs and cats, drugs to combat parasites in poultry, and vaccines and feed additives for livestock and poultry.

Bayer HealthCare Animal Health

Baytril is an antibiotic available in formulations for companion and food animals.

Bayer's Animal Health division manufactures antimicrobials, parasiticides, sedatives, pain killers, and nutritional supplements and feed additives for dogs, cats and horses. Products for food animals include antiinfectives, vaccines, parasiticides and sedatives and pain killers.

Boehringer Ingelheim Animal Health

Enterisol Ileitis is Boehringer Ingolheim's vaccine against ileitis in pigs.

Boehringer Ingelheim markets biologicals, vaccines, pharmaceuticals and other care products for use in pets and livestock.

Novartis Animal Health

Novartis's Apex-IHN is a vaccine for use by fish farms for prevention of infectious hematopoietic necrosis virus (IHNV) disease.

Novartis develops and markets health product for companion animals, livestock, and the aquaculture market. Popular products include treatments for dermatitis, flea protection, pain and heart-worm prevention in pets, and antibiotics and antiparasitics in farm animals. Novartis has also developed some of the first vaccines for combating viral and parasitic infections in fish. The company was acquired by Eli Lilly in 2015 for $5.4 billion.

Virbac Group

Virbac manufactures antibiotics, vaccines, antiparasitics, dermatological and dental products for the treatment and care of pets and food animals.