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Research & products

We run to, not from, the world’s biggest health challenges.

The journey to invention and discovery is guided by science – and inspired by patients

Our purpose is to save and improve lives for generations. Our strategy is simple: We follow the science. The path to discovery is often unclear, but we are tireless in seeking therapies for some of the world’s most difficult health challenges.

Our work in numbers


people employed in research and development


people reached through our major programs and partnerships


invested in R&D in 2021

We aim to address the world’s most difficult health challenges, following world-class science


Our focus on world-class science is working


We’re focused on inventing new medicines and vaccines to help more people

Clinical trials

We set out to answer important and tough scientific questions

Protecting animal health

Our Animal Health business is dedicated to preserving and improving the health, well-being and performance of animals and the people who care for them.