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

As a total healthcare company
we strive to support the unique potential of each individual

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

Business Collaborators

Corporate Governance

Other Information

Corporate brochure

Download our corporate brochure

(PDF：25.6MB)

Otsuka Virtual Factory Tour (Japanese)

News Releases

Nutraceuticals

The Results Suggest the Potential Usefulness of S-Equol in Women with Severe Symptoms of PMS and PMDD New Findings Contribute to Advancing Support for Women's Health

Nutraceuticals

Otsuka Launches POCARI SWEAT ION WATER Powder Stick Packet to Make 500mlEasy Water and Ion Replenishment for Day-to-Day Situations: Ideal for Use with Reusable Bottles

Pharmaceuticals

Otsuka Receives FDA Approval for First-in-Class SIMTRIYO^® (centanafadine) for the Treatment of Attention-Deficit Hyperactivity Disorder (ADHD) in Adults and Pediatric Patients Aged 6 Years and Older