About Us

Discovering drugs that help people live fuller lives


Proximagen is the drug discovery and development subsidiary of Upsher-Smith Laboratories, Inc., a U.S.-based, family-owned, fully-integrated pharmaceutical company whose mission is to deliver high-value, high-quality therapies and solutions that measurably improve patients’ lives. Located in Cambridge, U.K., Proximagen has in-house capabilities in all core drug discovery disciplines, including:

  • Medicinal chemistry
  • Biology
  • Drug metabolism and pharmacokinetics (DMPK)

As our molecules transition into development, our Upsher-Smith colleagues in Minneapolis, Minnesota provide expertise and resources in the areas of:

  • Translational medicine, including clinical pharmacology, modeling and simulation
  • Chemistry, manufacturing, controls (CMC) and formulation
  • Regulatory Affairs and Clinical Operations