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Contact Us

Thank you for your interest in learning more about our company. In an effort to answer your inquiries, the following information is provided for your convenience.

Frequently Asked Questions

Here you'll find the answers to some Frequently Answered Questions.
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Product Inquiries

For product information, please visit our products page.

To report an adverse experience with a specific Merck product, please call the Merck National Service Center at 1.800.444.2080. The Merck National Service Center is pleased to assist you Monday through Friday from 8 a.m. to 7 p.m. ET.

Adverse experiences and product-related emergencies can be reported at any time by dialing 1.800.444.2080.

Merck Corporate Headquarters

One Merck Drive
P.O. Box 100
Whitehouse Station, NJ 08889-0100 U.S.A.

Phone: 908-423-1000
Monday-Friday
8:30 a.m.to 5:30 p.m., ET

Merck Worldwide

Contact Information for Merck worldwide.