Fujii Memorial Research Institute

The Fujii Memorial Research Institute is a premier research facility of Otsuka Pharmaceutical Co., Ltd., located in Otsu, Japan. Established in 1983 to honor the legacy of the company's founder, Busaburo Fujii, the institute serves as a core hub for basic research and early-stage drug discovery. Its scientific efforts are primarily focused on identifying innovative treatments for central nervous system disorders, nephrology, and cardiovascular diseases. The institute is renowned for its unconventional approach to R&D, which led to the discovery of breakthrough therapies such as the antipsychotic aripiprazole and the vasopressin antagonist tolvaptan. By integrating advanced medicinal chemistry with deep biological insights, the Fujii Memorial Research Institute continues to drive the growth of Otsuka's global pharmaceutical pipeline.