About Otsuka

Otsuka Pharmaceutical was established in 1964.
At Otsuka Pharmaceutical, we are committed to a holistic approach to health and well-being of people and are striving to create innovative, thoroughly-original pharmaceutical and nutraceutical products based on our corporate philosophy
"Otsuka-people creating new products for better health worldwide".

Message from Top Management

Otsuka-people creating new products for better health worldwide

Otsuka People Talk

Otsuka employees share their stories of continually rising to the challenge

Corporate Profile

Timeline of Otsuka's History

Contact Addresses in Japan

Affiliated Companies Around the World

Production Activities

Original Global Development

Business Collaborators

Corporate Governance

Other Information

Corporate brochure

Download our corporate brochure

(PDF：8.19MB)

Otsuka Virtual Factory Tour (Japanese)

News Releases

Nutraceuticals

Joint Research on Athletes' Heat Acclimatization and Fluid/Nutrition Strategies at the World Athletics Championships Tokyo 25Provide New Insights for People Involved in Sports Around the World

Nutraceuticals

Otsuka Pharmaceutical Supports World Athletics Championships Tokyo 25 with POCARI SWEAT "Believe In Your Potential." is the Key Message We are Spreading to People Around the World

Pharmaceuticals

Otsuka Pharmaceutical Diagnostic Division Opens a New Laboratory in Tokyoto Advance Development of Next-Generation Medical Devices