The Sankogan Medicine Museum, located in Gose City, Nara Prefecture, introduces visitors to the history and culture of traditional Japanese medicine, particularly the practice of household medicine distribution, a system historically associated with the Yamato region. Through historical documents, medicinal herb specimens, traditional pharmaceutical tools, and interactive exhibits, the museum offers an engaging introduction to the development of Japanese medicine and the role it has played in everyday life.
The museum’s exhibits explore the history of medicine distribution in Nara, displaying examples of crude medicinal herbs, ingredients used in traditional herbal remedies, and tools once employed in the preparation of medicines. Video presentations explain how medicines were made and how medicine distributors traveled from household to household, helping visitors understand the practical role these remedies played in the lives of ordinary people.
One of the museum’s highlights is its hands-on medicine-making area. Visitors can handle traditional pharmaceutical tools and experience some of the processes once used to prepare medicines. By seeing and touching these tools, guests gain a more tangible understanding of how closely traditional remedies were connected to daily life in Japan.
Outside the museum, a medicinal herb trail and a carefully maintained Japanese garden provide a peaceful setting for a stroll. Surrounded by plants and trees that change with the seasons, visitors can reflect on the natural origins of many traditional remedies. The tranquil grounds also offer a pleasant place to rest between exhibits and enjoy the connection between nature and traditional medicine.
The Yamato region, which corresponds largely to present-day Nara Prefecture, has played an important role in the development of Japanese medicine. The Kojiki and Nihon Shoki, two of Japan’s oldest historical chronicles, record medicinal herb-gathering expeditions during the reign of Empress Suiko. These accounts suggest that collecting plants for medicinal purposes was already an established practice in ancient Japan.
The use of medicinal plants is also associated with the ascetic practitioner En no Gyoja, while Buddhist temples in Nara contributed to the preparation of medicines and the cultivation of medicinal gardens. Over the centuries, Yamato became one of Japan’s significant centers of medicinal knowledge and production.
During the Edo period (1603–1868), the household medicine distribution system became widespread. Merchants left supplies of medicine with families and collected payment for the products that had been used when they returned on subsequent visits. Yamato developed into one of the country’s leading centers for this trade, second only to Toyama in prominence. The Sankogan Medicine Museum was established to preserve and share this distinctive heritage.
At the heart of the museum is Sankogan, a traditional Japanese-Chinese herbal medicine known for its use as a digestive remedy. Its origins are traced to the late Kamakura period (1185–1333), and an earlier form of the medicine is said to have been produced during the Gen’o era (1319–1321). According to tradition, Emperor Go-Daigo bestowed the name Sankogan on the remedy. It has since been passed down through generations, with a history spanning more than seven centuries.
The Yoneda family, which produced and sold Sankogan, belonged to a branch of the Ochi clan, a powerful family in southern Yamato. After the Ochi clan declined, the family remained in the area and continued making its inherited medicine alongside farming. By the late Edo period, the Yoneda family had become an influential force in organizing local medicine merchants and promoting the development of the Yamato pharmaceutical trade.
Competition between medicine merchants from Yamato and Toyama intensified toward the end of the Edo period. In 1866, during the final years of the shogunate, Sankogan’s head, Yoneda Josuke, took the initiative in bringing together merchants from Toyama, Kaga, and Yamato to establish a business agreement. The document recording this agreement, known as the Nakama Torishimari Giteisho Renginkan, is preserved and displayed at the museum, offering a valuable glimpse into the organization of the traditional medicine trade.
During the Meiji period (1868–1912), the business also registered a trademark featuring the sun, moon, and stars to distinguish its products and help protect them against counterfeits. In 1899, the Sankogan Alliance was established to modernize sales networks and strengthen cooperation among distributors. These initiatives contributed not only to the development of Sankogan but also to the wider growth of Japan’s household medicine industry.
Over the years, Sankogan’s production has adapted to changing times through the introduction of machinery and improved management systems, while continuing to uphold the traditions and principles inherited from earlier generations. Household medicine distribution remains part of Japan’s pharmaceutical heritage, and the industry continues to serve communities across the country.
By combining historical records, practical demonstrations, and a peaceful garden setting, the Sankogan Medicine Museum brings this enduring story to life. It is a rewarding destination for visitors interested in traditional medicine, Japanese history, and the everyday customs that have shaped life in the Yamato region.
Admission to the Sankogan Medicine Museum is free, and reservations are not required. The museum welcomes anyone curious about traditional Japanese remedies, herbal medicine, or the history of local industries.
Access: Approximately a 10-minute walk from JR Wakayama Line’s Kiwami Station, or about a 15-minute walk from Ichio Station on the Kintetsu Yoshino Line.