Houttuynia cordata was first published in the "Famous Doctors' Directory", saying that it is "pungent, slightly warm", the main "cockroach urine sores", and "eating too much makes people breathless". A more comprehensive introduction to the nature, taste, function, indications and precautions of Houttuynia cordata. "Compendium of Materia Medica" quoted Tao Hongjing as saying, "It is commonly said that eating ferns is not good for people's feet, and I am afraid that it is due to breathlessness." Today, when children eat it, they feel pain in their feet. It can be seen that Tao Hongjing has analyzed or clinically observed the "asthma" or "unfavorable human feet" caused by eating Houttuynia cordata. The "Handbook of Common Chinese Herbal Medicine" says: "Clear away heat and detoxify, treat mastitis, cellulitis, otitis media, and enteritis." It is generally believed that Houttuynia cordata has the effect of clearing heat and detoxifying, eliminating carbuncle and draining pus, diuretic and drenching, and is widely used in the treatment of pulmonary carbuncle pus, phlegm, hot cough and asthma, hot dysentery, hot shower, carbuncle swelling and sores.
"Compendium of Materia Medica" cloud: "Its leaves are fishy, so it is commonly called Houttuynia cordata". In addition, its different names include fern, cen grass, cabbage, bracken, stinky cordata and so on.
Diet
Houttuynia cordata pork lung soup: Houttuynia cordata 30g, bellflower 12g, almonds 12g, pig lungs 250g. The above are put into the pot together to boil the soup and drink. Clear away heat and detoxify, drain pus and eliminate carbuncles. It is mainly used for the treatment of wind-heat cold, cough, yellow phlegm, red tongue, thin yellow moss, pulse floating, etc.
Houttuynia cordata stewed pork ribs: Decoction 200g of Houttuynia cordata first, filter, put 300g of pork ribs into a cooking pot, pour in Houttuynia cordata liquid, and start to simmer. After the meat is cooked, add an appropriate amount of salt and monosodium glutamate, drink the soup and eat the meat, eat it 2~3 times, 2 times a week. Clear away heat and detoxify, drain pus. It is used for pulmonary fever cough, pulmonary carbuncle cough, pus and blood, yellow and thick phlegm, etc.
Chinese medicine
The traditional Chinese medicine Houttuynia cordata is a fresh whole herb or dried aerial part of the plant Bracken of the family Brackenaceae. It is mainly produced in Zhejiang, Jiangsu, Anhui and Hubei. Fresh products can be harvested all year round; Dried products: In summer, the stems and leaves are lush and the flower spikes are harvested, impurities are removed, and they are dried. This product has a fishy smell and an astringent taste. It is better to have many leaves, gray-green color, flower spikes, and strong fishy smell. Raw.
This product has a spicy taste and is slightly cold. Return to the lung meridian. It has the effects of clearing heat and detoxifying, eliminating carbuncle and draining pus, diuretic and drenching.
Note: 1) This product contains volatile oil and should not be fried for a long time. 2) The side effects of synthetic houttuynin are generally mild, with a fishy smell after oral administration, and a small number of patients have local pain during intramuscular injection. When administered intravaginally, vaginal congestion occurs in individual cases. All of the above reactions disappeared after discontinuation of the drug. However, it has also been reported that the application of Houttuynia cordata injection can cause anaphylactic shock and even death, or cause bullous drug dermatitis, which should be noted.
Adverse effects
Houttuynia cordata was first published in the "Famous Doctor's Directory", saying that it "makes people asthma when they eat too much". "Compendium of Materia Medica" quoted Sun Simiao as saying, "People with athlete's foot eat it, and it will not heal for a lifetime." He also quoted Meng Xu's saying, "Children eat it, but it is not good at three years old." Long-term food makes you weak, damages yang qi, and eliminates essence. Tao Hongjing also said: "It is said that eating is not good for people's feet, and I am afraid that it is because of holding our breath." Today, when children eat it, they feel pain in their feet." It can be seen that the ancients generally believed that Houttuynia cordata should not be eaten too much, and eating too much is harmful to the human body. In modern times, it is generally believed that Houttuynia cordata is non-toxic and has few side effects. Folks use Houttuynia cordata as vegetable food or green fodder for pigs, although they eat a large amount, there is no poisoning and adverse reactions. The LD50 of synthetic houttuynin administered to mice was (1.6±0.081) g/kg. Mice are given intravenous infusion of 75~90mg/kg daily for 7 consecutive days without lethality. Dog intravenous drip 38mg/kg or 47mg/kg, no obvious abnormality. No abnormal changes were found in the heart, lungs, liver, kidneys, spleen, stomach, and intestines. The subacute toxicity test showed that dogs were given 80mg/kg or 160mg/kg orally every day for 30 days, and there was no significant effect on animal appetite, blood image, liver and kidney function. However, it can cause vomiting and salivation of varying degrees.
Houttuynia cordata injection
Houttuynia cordata injection is to take 2000g of fresh Houttuynia cordata for steam distillation, collect 200ml of the initial distillate, and then re-distill, collect about 1000ml of re-distilled solution, add 7g of sodium chloride and 5g of polysorbate-80, mix well, add water for injection to make 1000ml, filter, pot, sterilize, and obtain. Houttuynia cordata injection has the effects of clearing heat, detoxifying and dampness, and its pharmacological effects mainly include antibacterial, enhancing the body's immune function, anti-allergy and asthma. It is often used to treat lung abscess, phlegm, fever, cough, leucorrhoea, urinary tract infection, carbuncle and other diseases. The adverse reactions are mainly due to the clinical application of intramuscular injection, and a small number of patients have local pain; When administered intravaginally, vaginal congestion occurs in individual cases. All of these reactions disappeared after discontinuation of the drug. Clinical application, some of which have also caused bullous epidermolysis, atrophic dermatitis or drug eruption, Henoch-Schonlein purpura, anaphylactic shock and even death. As early as 1988, it was noted that Houttuynia cordata injection could have serious adverse reactions, and corresponding monitoring was carried out; In August 2003, the National Adverse Drug Reaction Monitoring Center informed the public of the serious adverse reactions caused by Houttuynia cordata injection in the "Adverse Drug Reaction Information Circular", and reminded doctors and patients to use such drugs with caution.
Modern pharmacology
Houttuynia cordata mainly contains volatile oils, flavonoids, polysaccharides, alkaloids, phenolic compounds, organic acids, proteins, amino acids, etc.
Houttuyn contained in Houttuynia cordata in traditional Chinese medicine has different degrees of inhibitory effect on a variety of gram-positive and negative bacteria such as Staphylococcus aureus, pneumococcus, group A streptococcus, influenza bacillus, catarrhal coccus, typhoid bacillus and Mycobacterium tuberculosis. Non-volatile components have antiviral effects. It can enhance the phagocytic ability of white blood cells and improve the body's immunity. In addition, it has diuretic, anti-inflammatory, analgesic, hemostatic, promoting tissue regeneration and wound healing, and antitussive effects.
Time: 2024