Our Business

Our Business

We are inspired by a shared vision and mission to save and improve lives.



With a steady focus on innovation and sound science, we work to deliver vaccines, medicines, and animal health products that can help millions around the world.

Our core product categories include diabetes, cancer, vaccines and hospital acute care. We continue to focus our research on conditions that represent some of today’s most significant health challenges—like cancer, HIV, HPV, hepatitis C, cardio-metabolic disease, antibiotic-resistant infection and Alzheimer’s disease, and we are on the front lines in the fight against emerging global pandemics, such as Ebola.

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.

We’re applying our global reach, financial strength and scientific excellence to doing more of what we’re passionate about: improving health and improving lives.

“Our company is built on the simple premise that great medicines change the world. We believe that a research-driven enterprise dedicated to world-class science can create medicines and vaccines that will make a difference for society and deliver value to shareholders at the same time.”

Kenneth C. Frazier
Chairman and CEO, MSD


We are a global health care company that delivers innovative health solutions through our prescription medicines, vaccines, biologic therapies, and animal health products.


Our core business is the discovery and development of prescription medicines for diseases and conditions that impact millions of people.

We invest billions of research dollars to find medicines that can help improve lives. Today, our company has more than 50 prescription products in key therapeutic areas such as cardiovascular disease, respiratory disease, oncology, neuroscience, infectious disease, immunology and women’s health.

To learn more, click here. 


Vaccines are one of the greatest public health success stories in history, and our company has played its part in that story.

We have been working to discover and develop vaccines for more than a century. Our unique vaccines have helped prevent a number of diseases, including some never thought to be preventable. Today, we remain dedicated to the complex business of researching and producing vaccines.

To learn more, click here. 


Our Animal Health business is a global leader in the research, development, manufacturing and sale of veterinary medicines, offering one of the widest range of veterinary pharmaceuticals, vaccines and health management solutions and services.

To learn more, click here. 


Our company has a robust pipeline, with a wide range of product candidates across each phase of development. View the pipeline.


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

View the list of Executive Committee members.

View the list of Board Members.


The company, Merck & Co., Inc., Kenilworth, N.J., USA, is known as MSD outside the United States and Canada and is listed on the New York Stock Exchange under the symbol “MRK.”

Visit our corporate website.