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What is Tsumura & Co.

Tsumura & Co. (ツムラ) is a Japanese pharmaceutical company with a history of over 130 years, founded in 1893 and specialising in the production of traditional kampo medicines (traditional Japanese herbal medicines) and plant-based products.

Its philosophy is to combine nature and science — the company strives to use natural medicinal ingredients in combination with modern scientific methods to create effective, high-quality products.

Company products

  • Prescription Kampo medicines
    Tsumura develops and manufactures a variety of prescription herbal medicines that are prescribed by doctors in Japan. These products undergo rigorous quality testing and are used in clinical settings.
  • Over-the-counter and OTC medicines
    The company also offers affordable over-the-counter herbal medicines for a wide range of consumers, which are used for various health conditions.
  • Herbal extracts and granules
    One of the most common formats is herbal extract granules (e.g., Yokukansan, Tokishakuyakusan), which are widely used as traditional medicinal mixtures.

Production and quality control

Tsumura actively controls the entire cycle of creating its products: from the cultivation and procurement of medicinal plants, through the processing and standardisation of raw materials, to the production of the final preparations.

The company has its own production and research facilities in Japan, as well as international divisions in China and the United States for the cultivation and processing of herbs, as well as for research and development.

Conclusion

Tsumura & Co. is not just a ‘dietary supplement brand,’ but a reputable Japanese pharmaceutical company specialising in traditional herbal medicines (kampo) and plant-based preparations.

It is one of Japan’s leading manufacturers of kampo medicines, which are used in both traditional and modern medicine.

The company combines traditional herbal knowledge with modern scientific testing and quality control, making its products sought after and recognised both in Japan and abroad.