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Contact Us

To report an adverse reaction, product-related problem, or human exposure, please call Merck Animal Health Technical Services:
Phone: 1-800-224-5318
Normal business hours are 8:30 AM to 5:00 PM EST.
For after-hours emergencies, please call the number shown above. A recorded message will provide the telephone numbers for emergency support services if immediate assistance is needed.

For MyPet Rewards Program questions:
Contact the processing center at 855-496-0146 M-F 8AM-6PM EST