Ninjinto (richugan)

Ninjinto - Li Zhong Wan

Chinese: Ren Shen Tang (Li Zhong Wan)

English: Ginseng Decoction (Regulate the Middle Pill)

Source: Shanghanlun (Treatise on Cold Damage Diseases)

Pulse: weak, sunken, slow

Tongue: pale body, wet white fur

Abdomen: shinkahiko, shinsuion, zendofuon, midline lead

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

  • Chills
  • Diarrhea
  • Watery stools
  • Indigestion
  • Abdominal pain
  • Nausea
  • Vomiting
  • Poor appetite
  • Fatigue
  • Retention of excessive thin saliva in the mouth

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


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.

Abdominal pattern (fukusho) of Ninjinto (from Fukusho Kiran Yoku 1809)

Basic and Clinical Research on Ninjinto – Updated on Mar. 30, 2011

Sato Y, Katagiri F, Inoue S, et al. Effects of Ninjin-to on levels of calcitonin gene-related peptide and substance P in human plasma. Biological & Pharmaceutical Bulletin 27: 2032-4 (2004).

Naito T, Itoh H, Nagano T, et al. Effects of Ninjin-to on levels of brain-gut peptides (motilin, vasoactive intestinal peptide, gastrin, and somatostatin) in human plasma. Biological & Pharmaceutical Bulletin 24: 194-6 (2001).