The history of the Otsuka Group dates back to 1921, starting as a small chemical raw material production factory. Today, the Otsuka Group has grown into a global group comprising Otsuka Pharmaceutical Co., Ltd. and its affiliated companies, with 178 companies and approximately 47,000 employees in 28 countries and regions worldwide. Consolidated sales revenue in 2015 reached $13 billion, with pharmaceutical-related business accounting for about 67%, and functional beverages, food, and cosmeceuticals — collectively called the Nutraceuticals※ business — accounting for about 22%, with the remainder from consumer-related and other businesses.

Otsuka Pharmaceutical was founded in 1964, with "Otsuka-people creating new products for better health worldwide" as its corporate philosophy, conducting business activities aimed at improving human health. The "pharmaceutical business that treats diseases" and the "Nutraceuticals business that supports daily health" are the main pillars of Otsuka Pharmaceutical. To contribute to human health, Otsuka Pharmaceutical actively engages in R&D, manufacturing, and sales of innovative and creative products. As a health-focused company, Otsuka Pharmaceutical maintains high ethical standards, fosters a culture of innovation, and seeks harmonious development with local communities and the natural environment to become a globally scaled innovative enterprise.