Contact Us

two dogs - Poodle, Jack Russell terrier

For more information on Nobivac® Canine Flu H3N8, Canine Influenza Vaccine H3N2, or Nobivac® Canine Flu Bivalent, contact your local Merck Animal Health Representative, call Customer Service at 1-800-521-5767 or Technical Services at 1-800-224-5318, or visit If you are a dog owner, please contact your veterinarian for more information.

To report an adverse reaction, product-related problem, or human exposure, please call Merck Animal Health Technical Services:

  • 800-224-5318  Companion Animal (Dogs, Cats, Horses)
  • 800-211-3573  Livestock & Aquaculture (Cattle, Swine, Dairy)
  • 800-219-9286  Poultry
Normal business hours are 8:30 am to 5:00 pm EST.

For after-hours emergencies, please call the numbers shown above. A recorded message will provide the telephone numbers for emergency support services if immediate assistance is needed.

Postal Address
Intervet Inc., d/b/a Merck Animal Health
2 Giralda Farms
Madison, NJ 07940