To report an adverse reaction, product-related problem, or human exposure, please call or send mail to Merck Animal Health Technical Services: 1-800-224-5318
Merck Animal Health
2 Giralda Farms
Madison, NJ 07940
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