Quick review of knotweed efficacy and precautions

Knotweed, also known as bitter stick, spotted stick and other names, is the dry rhizome and root of Polygonaceae perennial herb Polygonum cuspidatum, which is excavated in spring and autumn. It is not only an ornamental plant, but its tender stems can also be eaten as vegetables. Its roots can be used as cold drinks, and its rhizomes can often be used to make Chinese herbal medicine noodles. The juice of the knotweed can dye rice flour, which has a unique flavor.

Knotweed efficacy and role

Knotweed has the functions of clearing heat and detoxifying, expelling phlegm and relieving cough, removing dampness and relieving jaundice, promoting blood circulation and removing blood stasis, and has antibacterial, anti-inflammatory and diuretic effects. Its specific function is as follows:

1. Treatment of damp-heat jaundice

Polygonum cuspidatum is bitter and cold in nature, has the effect of clearing away heat and dispelling dampness, and treats damp-heat jaundice. This product can be used alone 30 grams a day, decocted in water and taken in two or three times. It can also be used in combination with Artemisia annua L. Such as cholecystitis or cholecystolithiasis with jaundice, can be compatible with the efficacy and role of gold grass, chicken and so on. The lower coke is often used in combination with Cortex Phellodendri, Coix Seed, and Bixie. If it is the sand shower and stone shower of urinary calculi, it is often combined with the efficacy and role of money grass, Shiwei, sea sand and so on. For vaginal itching, you can also use this product to rinse with boiled water.

2. Treatment of heat toxin carbuncle

Knotweed is slightly bitter and slightly cold to clear heat and detoxify. It can be taken orally or externally to treat carbuncle and poisonous snake bites. It can be taken orally in decoction to treat water and fire scalds. The efficacy and role of Knotweed fine powder and sesame oil or strong tea can be used for local application. , or decoction thick juice with gauze dipped in wet compress. For the dry and hard stool caused by various syndromes of heat toxin, this product has the effect of purging fire and clearing the bowels, and the heat syndrome is easy to resolve.

3. Treat lung heat and cough

Polygonum cuspidatum is used in modern times to treat acute and chronic bronchitis and lobar pneumonia. It is used alone in large doses for decoction, or with the efficacy and role of Scutellaria baicalensis, the efficacy and role of almonds, and loquat leaves. Asthma relief.

4. Treatment of amenorrhea and dysmenorrhea

Polygonum cuspidatum has a bitter taste and enters the liver meridian, and has the effect of promoting blood circulation and removing blood stasis. It can be used in the treatment of amenorrhea and dysmenorrhea caused by internal resistance of blood stasis. It can be combined with madder, verbena, motherwort, and angelica. It can be used in combination with frankincense and myrrh for treating bruises, stasis and pain. Postpartum lochia, abdominal pain and refusal to press, can be taken orally alone. It is not good for blood stasis, the Qi mechanism is blocked, and the accumulation of symptoms caused by accumulation can be used with Sanleng and Curcuma.

5. Treats Muscle Pain

Hu Zhang can dispel rheumatism and relieve pain, clear meridians and collaterals, and relieve stagnation of qi and blood, joint redness, swelling and burning.

Chinese knotweed side effects

Polygonum cuspidatum contains emodin, tannin and a variety of phenolic compounds, which are slightly toxic. Overdose can stimulate gastric mucosal reactions. Pregnant women should use with caution.

The main adverse reactions are nausea, vomiting, abdominal pain, diarrhea, often resulting in coma, collapse, shock, etc. due to excessive water loss. Long-term use has thrombocytopenia and false tendency of bleeding. Large doses can cause liver cell damage and cause abnormal liver function. Lead to leukopenia, occasionally hematuria. The tannin contained in Polygonum cuspidatum can be permanently combined with vitamin B1. Therefore, when taking large quantities of Polygonum cuspidatum for a long time, vitamin B1 should be supplemented as appropriate.