Contact MyPet
To report an adverse reaction, product-related problem, or human exposure, please call Merck Animal Health Technical Services: 1-800-224-5318
For after-hours emergencies, please call the toll-free number. A recorded message will provide the telephone numbers for emergency support services if immediate assistance is needed.
My Pet Rewards Program questions
Contact the processing center at 855-496-0146 M-F 8AM-6PM EST