Chinese: Da Huang Gan Cao Tang

English: Rhubarb and Licorice Decoction

Source: Jinguiyaolue (Essentials from the Golden Cabinet)

Pulse: shunken

Tongue: dry fur

Abdomen: fukuman

Indications: This herbal formula has been used for patients with following health conditions and symptoms:

  • Constipation in general

There are many other health conditions that may respond well to this herbal formula, in particular patients exhibiting indicative traditional diagnostic signs and symptoms.

Abdominal pattern (fukusho) of Daokanzoto (from Fukusho Kiran, 1800)

Herbs in This Formula

Note: Suggested dosages of each herb in Kampo formulas are often smaller than those of Traditional Chinese Medicine (TCM). Individual dosages of herbs may be adjusted depending on each patient’s condition, constitutional patterns, quality of the herbs, and other factors involved.


Basic and Clinical Research on Daiokanzoto (Da Huang Gan Cao Tang ) – Updated on Mar. 30, 2011

Miyoshi A, Masamune O, Fukutomi H, et al. The clinical effect of TSUMURA Daio-Kanzo-to Extract Granules for ethical use (TJ-84) against the constipation based on the new standard. Shokakika (Gastroenterology) 22: 314-28 (1996)

Harasawa S, Miyoshi A. Reevaluation of Kampo medicine in patients with constipation – efficacy of Daio-kanzo-to and Shokakigan (Japanese Journal of Cancer of the Digestive Organs) 6: 271-7 (1996)

Miyoshi A, Masamune O, Fukutomi H, et al. The clinical effect of TSUMURA Daio-Kanzo-To Extract Granules for ethical use (TJ-84) on constipation using double blind test. Shokakika (Gastroenterology) 18: 299-312 (1994)

Yokota H, Kanazawa H, Kondo T, et al. New colon preparation using the Kampo herb method (Daio-kanzo-to). Therapeutic Research 10: 1637-43 (1989)