In Traditional Chinese Medicine (TCM), Zuo Gui Wan reinforces the kidney and nourishes Yin of the Yin-Yang principles. Yin and Yang are the opposing principles that depend on each other for existence within any subject as a whole, such as female and male for mankind, dark and light for a complete day, negative and positive for numbers. A robust interaction and balance of Yin-Yang forms the basis of a good health. The kidney is the innate foundation of all organs with respect to the Yin-Yang principles, Qi essence etc.
How Zuo Gui Wan works in modern biomedical terms is still not clear. However, some researches suggest that it increases markedly the production of male sex hormone testosterone in mice and human patients with kidney Yin deficiency and promotes the development and growth of testes and uterus.1
Zuo Gui Wan is indicated in China Pharmacopoeia2 for Yin deficiency of kidney; weakness and soreness of the loins and the knees; sweating; lassitude; dry mouth and throat.
Zuo Gui Wan is mainly applied for:
• Sexual wellness. It is used for loss of sex desire and energy and failure to sustain firm erection in association with the weakness and soreness of the loins and knees,seminal emission, dizziness, and tinnitus.
• Persistent Back Pain due to the kidney Yin deficiency. The pain typically gets heavier after overwork but relieved after rest and is accompanied with dizziness, tinnitus, sweat and emission.
• Female infertility. In a clinical study, 48 infertile female who suffered kidney deficiency in TCM’s terms were treated with Zuo Gui Wan or You Gui Wan. 35 female got pregnant after 1 year.
• Amenorrhea – no menstrual periods. Studies show Zuo Gui Wan restores menstrual periods in most women who suffer amenorrhea after 2-3 months use of it.
The doctor recommend: 2 tablets, 2 times a day, before/after meal (half hour)