History of Seirogan, Seirogan Toi-A | Taiko Pharmaceutical Co., Ltd.

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About Seirogan: Product History

Seirogan was first used as a gastrointestinal medication by the Royal Japanese Army in Russia during the Russo-Japanese War of 1904-5. It was then called the Chuyu-Seirogan as a homophone to bravely conquer Russia in Japanese to boost the morale of the Royal Japanese Army. Later, the name was changed to Seirogan by Taiko Pharmaceutical until now.
Since the Russo-Japanese War, Seirogan has been a common gastrointestinal solution to many for more than 100 years.

1902	Mr. Saichi Nakajima obtained the drug sales license for Chuyu-Seirogan from the Osaka Prefecture Government.

1904	The Japanese Military manufactured and distributed Seirogan to the Royal Japanese Navy during the Russo-Japanese War of 1904-5.

1946	Otojiro Shibata, founder of Taiko Pharmaceutical, acquired the right of manufacture and sell Chuyu- Seirogan.

1949	Chuyu-Seirogan was changed to Nakajima-Seirogan. In consideration of international relations, the product was renamed to avoid the connotations of conquer Russia.

1954	Nakajima-Seirogan was changed to Seirogan. It has since been distributed in the name of Seirogan. Compared with Seirogan at that time and Seirogan at present, the variety of natural ingredients inside is different.

1957	“Seiro”, the prototype Seirogan Toi-A was officially launched, marking the origin of Seirogan Toi-A, the sugar-coated tablet of the Seriogan series.

1966	The Seirogan Sugar Coated Tablet was officially launched. As the prototype of the Seirogan Toi-A, it is different from the Seirogan Toi-A with a slight content difference.

1967	Chiang li (強力) Seirogan was launched. Chiang li (強力) Seirogan by adding dry yeast to Seirogan was launched.

1972	The prototype package of modern Seirogan was launched.

1980 1982	Seirogan with brand new ingredients was launched. Seirogan with brand new packaging was launched. The ingredients and packaging of modern Seirogan were finalized.

1980	The Seirogan Toi-A was launched It is the prototype of the modern Seirogan Toi-A, both ingredients and packaging.

1985	Pocket-sized Seirogan was launched. To fulfill traveler’s needs, the pocket-sized Seirogan in a handy box package was launched. There are 4 color options.

1992	The Seirogan Toi-A in P.T.P. package was launched.

2002	The 100th Anniversary Package was launched To celebrate the 100th anniversary of the Chuyu-Seirogan, the 100th Anniversary Package was launched in a limited edition.

2004	The 18-pill-package Seirogan was launched. The My Seirogan, a small package of Seirogan containing 2 days of adult dosage, was launched for people living alone or for office use.

2004	New package Seirogan Toi-A was launched. In addition to increasing the content, the new package uses a transparent bottle to facilitate consumers to see the remaining content. Also, in consideration of the convenient use, the PTP package was introduced to facilitate consumers to take Seirogan Toi-A.

2006	Pocket-sized Seirogan Toi-A was launched The new Pocketable & Smart box Seirogan Toi-A was introduced to the market for women and young consumers who resisted the product use.