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Frequently Asked Questions
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For product information, please visit our products page .
To report an adverse experience with a specific Merck human health 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. and product related emergencies can be reported at any time.
Animal Health Product Inquiries
To report an adverse reaction or if you have a product-related question, please call Merck Animal Health Technical Services:
For Companion Animal (dogs, cats), please call 1.800.224.5318 Monday-Friday during the hours of 8:30 a.m. to 5 p.m. EST.
For Livestock, Poultry & Aquaculture (cattle, swine, dairy, poultry & fish), please call 1.800.211.3573 Monday-Friday during the hours of 8:30 a.m. to 8 p.m. ET.
For Equine (horses), please call 1.866.349.3497 Monday-Friday during the hours of 8:30 a.m. to 5 p.m. ET.
Merck Corporate Headquarters
2000 Galloping Hill Road
Kenilworth, NJ 07033 U.S.A.
8:30 a.m.to 5:30 p.m. ET
Merck in canada
16750, Trans-Canada Highway Kirkland, Quebec H9H 4M7 Canada
+1 514 428-7920
Forward-Looking Statement of Merck & Co. Inc. Kenilworth, NJ, USA
This website of Merck & Co. Inc. Kenilworth, NJ, USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the United States Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. There can be no guarantees with respect to pipeline products that the products will receive the necessary regulatory approvals or that they will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.
Risks and uncertainties include, but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of pharmaceutical industry regulation and healthcare legislation in the United States and internationally; global trends toward healthcare cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the company’s patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.
The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2015 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).
No Duty to Update
The information contained in this website was current as of the date presented. The company assumes no duty to update the information to reflect subsequent developments. Consequently, the company will not update the information contained in the website and investors should not rely upon the information as current or accurate after the presentation date.
Merck is known as MSD outside the United States and Canada. Clicking on any of the links below will take you to a website intended for those living outside the United States and Canada.