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Contact Us

To report an adverse reaction, product-related problem, or human exposure, please call Merck Animal Health Technical Services at 800-224-5318.

Normal business hours are 8:30 am to 5:00 pm EST.

For after-hours emergencies, please call the numbers shown below. A recorded message will provide the telephone numbers for emergency support services if immediate assistance is needed.

Customer service: 800 521 5767
Technical service: 800 224 5318

To contact our diabetes professionals, please type your message in the text box below and click on "Submit" to send us an e-mail. We will respond to you within 2–3 working days. Please be sure to include your name, address, phone number and e-mail address in order to allow us to assist you in the best possible manner.

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