Overview of the efficacy and functions of penguancao

Biguancao, also known as horsetail, is a traditional Chinese medicinal material that has the effects of improving eyesight and reducing nebula, stopping bleeding and swelling, diuresis and treating stranguria. It is widely used in folk and clinical Chinese medicine.Its main active ingredients include flavonoids, silicates and volatile oils. Modern research has also found that it has antioxidant and antibacterial effects.This article will start from three aspects: traditional efficacy, modern research and usage precautions to help readers fully understand this plant.

Traditional functions: core functions of improving eyesight and stopping bleeding

Biguancao is recorded in the "Compendium of Materia Medica" as "curing redness, swelling and pain in the eyes, and film covering the eyes", and its eyesight-improving effect is particularly prominent.Traditional Chinese medicine believes that it is mild in nature and sweet in taste, and it returns to the liver and lung meridian. It is often combined with chrysanthemum and cassia seeds to treat eye diseases.In addition, its astringent and hemostatic properties can be used for epistaxis, hemorrhoid bleeding, etc. External application can relieve traumatic bleeding.Folks also use its decoction to wash eyes or make tea for drinking to relieve eye fatigue.

Modern Research: Antioxidant and Antibacterial Potential

In recent years, studies have found that the flavonoids in Pencilgrass have significant antioxidant capabilities, which can scavenge free radicals and delay cell aging.Experimental data shows that its extract has inhibitory effects on common pathogenic bacteria such as Staphylococcus aureus and Escherichia coli (see table below).In addition, silicate ingredients may promote bone and connective tissue health, but further clinical validation is needed.

Usage Notes: Taboos and Reasonable Applications

Although Bi Guan Cao has various functions, it should be used with caution by pregnant women and those with yin deficiency and fire exuberance.Long-term use of large amounts may cause gastrointestinal discomfort. It is recommended to use it under the guidance of a physician.For external use, contact with open wounds should be avoided, and the daily dose for internal use should not exceed 10 grams.Modern research has not fully clarified its toxicity, so it is necessary to follow the principle of combining traditional usage with modern medicine.

Summary: The combination of traditional wisdom and modern science

As a traditional Chinese medicine with both historical heritage and scientific research value, the efficacy of Biguancao in improving eyesight and stopping bleeding has been proven for thousands of years, and modern research has expanded its antibacterial, antioxidant and other new directions.Proper use of this natural resource requires a balance between traditional experience and scientific evidence to avoid exaggerating the effects.Future research may further reveal the mechanism of action of its active ingredients and provide a reference for the development of new drugs.

Quote sources:

1. "Compendium of Materia Medica" Li Shizhen
2. "Chinese Pharmacopoeia" 2020 Edition
3. Zhang Ming et al. Study on the antibacterial activity of the flavonoid extract of B. pendulum [J]. Chinese Herbal Medicine, 2018.