Largeleaf Japanese Ginseng Rhizome

Traditional Use

Primary Actions

• Tonifies qi and nourishes yin - Zhu Zi Shen is used for chronic weakness, dry cough, thirst, and post-illness depletion when the patient needs support without the warmer push of Ren Shen.
• Invigorates blood and stops pain - unlike ordinary ginseng tonics, it also has a traditional role in traumatic pain, bruising, and rheumatic obstruction.
• Stops bleeding - classic use extends to hemoptysis, traumatic bleeding, and other deficiency- or injury-linked bleeding patterns in which support and restraint are both needed.

Secondary Actions

• Zhu Zi Shen should not be flattened into ordinary Ren Shen: it belongs to the broader Panax family but acts more like a cooler, rhizome-centered qi-yin tonic with blood-moving traits.
• Current botanical literature often places the source under Panax bipinnatifidus var. bipinnatifidus even though TCM and pharmacopoeial records still commonly use the Panax japonicus var. major naming layer.

Classic Formulas

• Zhu Zi Shen with San Qi or Bai Ji - a traditional pairing style for bleeding with tissue damage or trauma.
• Zhu Zi Shen with Mai Men Dong or Sha Shen - qi-yin restoring combinations for dry cough, thirst, and post-febrile depletion.
• Zhu Zi Shen with Du Huo or Qin Jiao - pattern logic when weakness coexists with painful obstruction and blood stasis.

Classical References

• Modern Chinese materia medica describe Zhu Zi Shen as sweet, slightly bitter, and slightly cold, entering the Lung, Liver, and Stomach to tonify qi, nourish yin, move blood, stop pain, and stop bleeding.
• The medicinal part is the rhizome rather than the ordinary ginseng root, which helps explain why this Panax drug carries a distinct pain-and-bleeding profile.
• This page follows the pharmacopoeial Rhizoma Panacis Majoris identity while preserving room for accepted botanical synonym updates.