Merck & Co., Inc. (United States)

How to Contact Merck & Co., Inc.
About Merck & Co., Inc.
Merck & Co. (known as MSD outside the US) is a global pharmaceutical leader in oncology, vaccines, infectious diseases, and cardiometabolic health. Key products include Keytruda (pembrolizumab), the world’s top-selling cancer immunotherapy; Gardasil HPV vaccine for cancer prevention; Januvia and Janumet for type 2 diabetes; and Bridion for surgical anesthesia reversal. Merck’s innovative research continues advancing cancer treatment, vaccine development, and treatments for serious diseases.





