The company is known as Merck in the United States and Canada. Everywhere else, we are known as MSD. Merck & Co., Inc. is the legal name and is listed on the New York Stock Exchange under the symbol "MRK."

Merck is an innovative, global healthcare leader that is committed to improving health and well-being around the world.

Our product offering categories include heart and respiratory health, infectious diseases, sun care and women's health. We continue to focus our research on conditions that affect millions of people around the world - diseases like Alzheimer's, diabetes and cancer - while expanding our strengths in areas like vaccines and biologics.

We also devote extensive time and energy to increasing access to medicines and vaccines through far-reaching programs that donate and deliver our products to the people who need them.

At Merck, we're applying our global reach, financial strength and scientific excellence to do more of what we're passionate about: improving health and improving lives.

Merck. Be well.

Pharmaceuticals
Alliances
Consumer Care
Animal Health
Vaccines

Merck is a global healthcare company that delivers innovative health solutions through its prescription medicines, vaccines, biologic therapies, and consumer and animal health products.

Visit a list of products marketed in the U.S.

Merck has a robust pipeline, with a wide range of product candidates across each phase of development.

View our pipeline.

Kenneth C. Frazier, chairman of the board, president and chief executive officer

Peter N. Kellogg, executive vice president and chief financial officer