Company Profile

Company Name

Ryukakusan Co., Ltd.



Established as Company

July 9, 1928


60 million yen


Ryuta Fujii, President

Net Sales

16.2 billion yen (fiscal year ended March 2022)

No. of Employees

134 (as of March 31, 2022)


Head Office
Ryukakusan Bldg., 2-5-12 Higashi-Kanda, Chiyoda-Ku, Tokyo 101-0031, Japan

Phone: +81-3-3866-1177 (switchboard)

- We ask that you provide us with your telephone number so that we can call you back if any problems are experienced with the call. To remove the caller ID block, dial 186 before entering the telephone number.

- Phone calls are recorded to enable us to understand the content of inquiries more accurately. Thank you for your understanding.

Nearest Stations:
- Iwamotocho Station on the Toei Shinjuku Line (5-minute walk)
- Bakurocho Station on the JR Yokosuka/Sobu Rapid Line (7-minute walk)
- Asakusabashi Station (West Exit) on the JR Sobu Line (7-minute walk)
- Asakusabashi Station on the Toei Asakusa Line (10-minute walk)
- Akihabara Station on the Tokyo Metro Hibiya Line (7-minute walk)
- JR Akihabara Station (Showa-dori Exit) (10- minute walk)

Branches and Offices

Osaka Office
River Point Kitahama Bldg., 1-3-14 Kitahama, Chuo-ku, Osaka-shi, Osaka 541-0041, Japan

Google Map

Plants / Research Facility

Chiba Plant
1460-3 Mitodai, Mito-aza, Tako-machi, Katori-gun, Chiba 289-2247, Japan

Google Map

Overseas Agencies Contact Information

Contact the following agencies for handling of Ryukakusan products in each respective country or region.(In order of export start date)

  • Newtaka Products Co., Ltd.

    Person in charge: Vicky Sung Phone: +(886) 2-2521-2192

  • Boryung Corporation

    Person in charge: GBD3 team Phone: +(82)-2-740-4223

  • St. Bund Healthcare Co., Ltd.

    Person in charge: Mr. Y. Zamma Phone: +(852) 2421-0166

  • Solstice Medicine Company

    Person in charge: Wina So Phone: +1 (323) 221-8180

  • Product name: Ryukakusan Direct Candy

    China Resources Sanjiu Medical & Pharmaceutical Co., Ltd.

    Person in charge: YU Email:

    Product: Ryukakusan Herbal Candies

    TAIGA SCM (Shenzhen) Co., Ltd.

    Person in charge: Ms. Xie Janet Email: