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Contact Us

Thank you for your interest in our corporate responsibility activities. We welcome your feedback on our Corporate Responsibility Report, as well as any other comments or questions you may have.

Corporate Headquarters

Merck & Co., Inc.

2000 Galloping Hill Road
Kenilworth, N.J. 07033 USA.
Phone: 908-740-4000
Monday–Friday
8:30 a.m. to 5:30 p.m. ET
Visit Website

Canadian Headquarters

16750, Trans-Canada Highway Kirkland,
Quebec H9H 4M7 Canada
+1 514-428-7920
Visit website

Worldwide Offices

Merck & Co., Inc., Kenilworth, NJ, USA is known as MSD outside the U.S. and Canada

For contact information for our worldwide sites, please click here.

Grant Requests

Philanthropy is an important component of our company’s commitment to corporate responsibility. For information on submitting a grant request, please review our Grant Application Guidelines for Non-Profit Organizations.

Product Inquiries
For product information, please visit our company’s Products page.

To report an adverse experience with one of our company’s products, please call our National Service Center at 1-800-444-2080. The Service Center is pleased to assist you Monday through Friday, from 8am to 7pm ET, and product-related emergencies can be reported at any time.

Download Our Report
Our comprehensive Corporate Responsibility Report is available in PDF format. To download the full report click here.

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Frequently Asked Questions
Answers to some Frequently Answered Questions can be found on this site or on our corporate headquarters’ website.