Merck & Co., Inc. is a global research-driven pharmaceutical company dedicated to putting patients first.

Ensuring Confidence in the Safety and Quality of Our Products

Advancing the Dialogue Toward a Healthier Future

Advancing the Dialogue

Overview Approach Performance

We recognize that when people take our medicines and vaccines, they must have confidence in their efficacy and safety. Ensuring this confidence is crucial to us.

Research and clinical trials show that, although medicines and vaccines have many benefits, they pose risks to some people. All of these products are associated with side effects, but not everyone will experience them. This is why pharmaceutical manufacturers make extensive information about their products available, enabling doctors to evaluate the risks as well as the benefits of any treatment and discuss them with their patients.

Medicines and vaccines are widely tested before they are approved for marketing. This testing is governed by a comprehensive regulatory scheme and our own research policies. The U.S. Food and Drug Administration estimates that a compound entering Phase I clinical trials has only an 8 percent chance of reaching the market1 — after the researching company has provided extensive data that demonstrate safety, efficacy and quality that meet rigorous standards.

The content on this page was last modified on September 15, 2009.

Merck & Co., Inc., Whitehouse Station, NJ, USA, and Schering-Plough Corporation, Kenilworth, NJ, USA, are now one company. We have combined our global operations under the name Merck & Co., Inc. We are working to update our corporate responsibility Web site to reflect our new, combined, global organization.


1Food and Drug Administration.  Innovation or Stagnation: Challenge and Opportunity on the Critical Path to New Medical Products. U.S. Department of Human Health Services, FDA, March 2004.

Copyright © 2009 Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Whitehouse Station, N.J., U.S.A.  Privacy  Terms of Use  Sitemap