Tang Dynasty: The Minister’s Kidney Remedy

A Traditional Chinese Medicine apothecary.
In traditional Chinese medicine (TCM), there is a powerful kidney remedy called 'Minister Zheng’s Prescription.' (Image: Garry Knight via Flickr)

In traditional Chinese medicine (TCM), there is a powerful kidney remedy called “Minister Zheng’s Prescription.” The origin of the name is directly related to the minister himself. There is an interesting and inspiring background story that goes along with this prescription. 

During the Yuanhe era of the Tang Dynasty, there was a minister surnamed Zheng. At the age of 75, he was appointed military governor and stationed in the South Sea region. Upon arrival, he soon became ill, as the place was humid and in the lower part of the region, there was little sunshine. Not just his kidneys, he suffered from various other kinds of diseases inside and out. He regularly had a full-blown eruption of symptoms. On occasion, they would all afflict him at the same time. 

The region was humid with very little sunshine, thus causing the Minister’s kidney imbalance and other ailments to flare up. (Image: via Pixabay)

His doctor prescribed many remedies for him, such as stalactite and amethyst, but none of them were effective. 

It was the 7th year of Yuanhe, Li Moke, a shipping tycoon of the Keling Kingdom heard about Minister Zheng’s illness. He gave the minister a prescription along with the actual prescribed medicinal ingredients. 

All the debilitating symptoms were gone

However, Minister Zheng was suspicious and hesitated at first. But eventually, he was persuaded by Mr. Li and took the medicine as a last resort. To his great surprise, all the debilitating symptoms were gone in about a week. 

In the 10th year of Yuanhe time, Minister Zheng returned to the capital and passed the kidney remedy prescription on to others. What is so interesting about this is that the main ingredient is mostly the humble walnut. Walnuts are believed to strengthen the kidneys. The potency of this kidney remedy prescription is augmented by having some walnuts together with Psoralea corylifolia

Su Song, a renowned pharmacologist of the Song Dynasty, once said that people liked to eat walnuts and Psoralea corylifolia together as a kidney remedy. 

Considered a powerful kidney prescription. Eating walnuts is also very heart-healthy and promotes liver function.
Considered a powerful kidney prescription. Eating walnuts is also very heart-healthy and promotes liver function. (Image: via secretchina.com)

The walnut shell looks like a human skull. And a shelled walnut looks like the human brain. These nuts are beneficial for the kidneys. During the Chinese New Year, people make a traditional dessert called “Walnut Daisy Nougat,” chiefly made with walnuts and dates. 

Although walnuts are good for the kidneys, they may generate excess stomach gas when eaten too much. If stored for too long either in the fridge or at room temperature, walnuts would ooze oil and become rancid.

One should never eat rancid walnuts

One should never eat rancid walnuts. According to the compendium of Materia Medica, oil-oozing walnuts are poisonous and could cause a series of health problems, including hair loss. 

Traditional Chinese medicine (TCM) offers other remedies derived from Minister Zheng's prescription.
Traditional Chinese medicine (TCM) offers other remedies derived from Minister Zheng’s kidney remedy prescription. (Image: kristoffer-trolle via Flickr)

Since the Tang Dynasty, other prescriptions have been derived from Minister Zheng’s original kidney remedy prescription. Among them are Qing Pills and Heqi pills — both of which are treatments for lower back aches and leg aches known today as sciatica. 

Of course, with all medical conditions, it is advisable to seek counsel from your trusted health practitioner.

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