Merck Manual

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  • Contact Us

    Content last modified Feb 2019

    Contact the Merck Vet Manual Staff

    We welcome your feedback. When contacting us, please include the country where you currently reside.

    Contact the Merck Vet Manual

    Adverse Event Reporting

    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)

    800-211-3573  Livestock (Cattle, Swine, Poultry & Aquaculture)

    866-349-3497  Equine (Horses)

    888-466-3242  HomeAgain

    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 telephone numbers for emergency support services if immediate assistance is needed.

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