Domestic Network

Shizuoka Plant

TSUMURA started the manufacture of Kampo formulations as prescription drugs first at this plant, which can therefore be called the "mother factory" where the company built the foundation for its technologies and product quality. While the Ibaraki Plant produces a few types of products, each in large amounts, the Shizuoka Plant plays the role of manufacturing a wide range of products, each in small quantities. In addition to being a production base for prescription Kampo formulations, the plant has production lines for OTC pharmaceuticals and crude drug pieces for decoction. The Chujoto medicine, which has been sold for more than 100 years since the founding of the company, is also produced at the Shizuoka Plant.

392 Tsuiji, Fujieda-shi, Shizuoka Prefecture 426-8539, Japan
Tel. 054 (641) 4011

Ibaraki Plant and Research Laboratories

The Plant boasts the world's largest size and production capacity for prescription Kampo formulations. On its premises, we also have research laboratories, the Tsumura Kampo Museum and the Tsumura Herbal Garden. At this "intelligent factory" that integrates leading-edge technologies in the fields of pharmacology, galenical pharmacy and information engineering, data obtained by each of the departments are immediately fed back to on-site staff and processed by computer for use as information that supports the stable supply of products from the Plant. Moreover, it is an Earth-friendly plant with low greenhouse gas emissions.

3586 Yoshiwara, Ami-machi, Inashiki-gun, Ibaraki Prefecture 300-1192, Japan
Tel. 029 (889) 2121

Ishioka Center

The Ishioka Center was initially established in 1983 as Nihon Shoyaku Co., Ltd. within the Kashiwabara industrial park in Ishioka City for the selection, processing and storage of crude drugs to be supplied to TSUMURA's Ibaraki Plant for the production of Kampo formulations, in response to completion of the plant that same year. In order to increase the precision of selection and processing and for integrated management from procurement through to processing, TSUMURA merged and absorbed the company in 2005. Subsequently, the Fujieda Center, which had been playing a similar selection and processing function and the Crude Drug Quality Management Department were integrated with former Nihon Shoyaku to form the Ishioka Center under the control of the Production Division.

7-2 Kashiwabara, Ishioka-shi, Ibaraki Prefecture 315-0002, Japan

Branches and sales offices

For the appropriate use and dissemination of its prescription Kampo formulations and other prescription drugs, TSUMURA employs professionals called medical representatives (MRs) who visit hospitals, clinics and dispensing pharmacies not only to simply brief them on the efficacy of the company's products but also to help more people obtain the right knowledge about Kampo medicines, which are garnering much attention as drugs showing new medical potential for the 21st century.

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