and the msd manuals at msd we are unified around our purpose: we use the power of leading-edge science to save and improve lives around the world. for more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. we aspire to be the premier research-intensive biopharmaceutical company in the world – and today, we are at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. first published in 1899 as a small reference book for physicians and pharmacists, the manual grew in size and scope to become one of the world's most widely used comprehensive medical resources for professionals and consumers. as the manual evolved, it continually expanded the reach and depth of its offerings to reflect the mission of providing the best medical information to a wide cross-section of users, including medical professionals and students