Can patients with kidney disease drink Cornus officinalis water?
Generally speaking, patients with kidney disease can drink Cornus officinalis (Shanzhuyu) water, but it should be done under the guidance of a doctor. The specific analysis is as follows:

Cornus officinalis is a commonly used traditional Chinese medicine that has various effects, including nourishing the liver and kidneys, consolidating and astringing, relieving rheumatism, alleviating pain, and warming the meridians. In traditional Chinese medicine theory, kidney disease is often associated with factors such as deficiency of liver and kidney and disharmony of qi and blood. Cornus officinalis can nourish the liver and kidney essence and blood, thereby achieving an auxiliary therapeutic effect on kidney deficiency. Additionally, due to its consolidating and astringent properties, Cornus officinalis can help alleviate symptoms such as spontaneous sweating, night sweats, enuresis, and frequent urination in patients with kidney disease.
Cornus officinalis is rich in various nutrients and active substances, which can regulate the body's immune system, enhance the activity of immune cells, and help kidney disease patients strengthen their resistance and prevent complications such as infections. However, it should be consumed in moderation, as excessive consumption may have adverse effects on the body.
Different patients may have different constitutions and medical conditions; therefore, before using Cornus officinalis water, it is important to consult a professional TCM practitioner and develop a suitable medication plan according to individual circumstances. Kidney disease patients may be taking other medications, and Cornus officinalis may interact with certain drugs, affecting their efficacy or increasing the risk of side effects. When using Cornus officinalis water, patients should inform their doctor about all medications they are currently taking.
References:
[1] Effects and Functions of Cornus officinalis [J]. Forestry and Ecology, 2017, (03): 26.
[2] Zhu Benhao. Nourishing the Liver and Benefiting the Kidneys - Cornus officinalis [J]. Healthy Living, 2011, (10): 22.