This segment focuses on the research, development, manufacturing, and commercialization of Kampo medicines. Tsumura & Co. utilizes traditional herbal medicine principles combined with modern pharmaceutical technologies. R&D activities include the study of crude drug processing, extraction methods, and formulation development. The company manufactures Kampo extract intermediates and granular Kampo formulations, targeting various therapeutic areas such as gastroenterology, gynecology, and respiratory health. Patient impact is significant, as Kampo medicines offer alternative treatment options and address unmet medical needs. Tsumura's market positioning is strong in Japan, with a growing presence in international markets. Future opportunities include expanding the product portfolio, exploring new indications, and leveraging digital technologies for patient education and adherence. Regulatory and clinical aspects involve rigorous testing and adherence to Good Manufacturing Practices (GMP). Partnerships with research institutions and healthcare providers are crucial for clinical validation and market access.

This segment is responsible for the procurement, selection, and processing of raw material crude drugs and crude drug pieces used in Kampo medicine production. Tsumura & Co. sources high-quality raw materials, ensuring their authenticity and efficacy. The company employs advanced techniques for quality control, including botanical identification and chemical analysis. Research and development efforts focus on optimizing extraction processes and ensuring the standardization of crude drug components. This segment supports the production of Kampo medicines, contributing to the treatment of various diseases and conditions. The company's market position is strengthened by its control over the supply chain and its commitment to quality. Future opportunities include exploring sustainable sourcing practices and developing new extraction technologies. Regulatory compliance is essential, with adherence to guidelines for crude drug handling and storage. Collaborations with suppliers and research institutions are vital for ensuring the quality and sustainability of raw materials.