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About OtsukaContact Addresses in Japan

Otsuka Pharmaceutical Co., Ltd. has headquarters facilities in Tokyo, Osaka, and Tokushima. In Japan, it conducts product development at five research institutes and production at seven factories.

In addition, its Pharmaceutical Business Division and Nutraceuticals Division each have branch offices distributed around the country in a finely-tuned sales and service organization.

Branch and Sub-Branch Offices

As of November 1, 2019