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

Companion Animal Technical Services –
Dogs & Cats: 800-224-5318

For information about microchip identification
in dogs and cats, call HomeAgain: 888-466-3242

Livestock Technical Services – Cattle, Swine,
Poultry, and Aquaculture: 800-211-3573

Equine Technical Services:

For information about Merck Animal Health products, call
Animal Health Customer Service: 800-521-5767

For after-hours emergencies: Call the appropriate
number listed above and follow the prompts.