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What is the efficacy of Polygonum multiflorum Thunb? How to identify?
vine of multi-flower knotweed

Also known as Polygonum multiflorum Thunb.

Tropism of nature and taste: sweet and flat; Heart tropism and liver meridian.

Nourishing blood, calming nerves and dredging channels and collaterals.

Caulis Polygoni Multiflori has the effects of nourishing heart, calming nerves, nourishing blood, expelling pathogenic wind, dredging collaterals and relieving pain, and is suitable for insomnia, body pain due to deficiency of yin and blood, pruritus of skin, etc. "Compendium of Materia Medica" records that Polygonum multiflorum Thunb "itches from wind sores and scabies, and it is very effective to take a bath in decoction." "Materia Medica from the New" also records that Polygonum multiflorum Thunb. "tonify the middle qi, activate meridians, dredge blood vessels, and treat strain." Modern pharmacological research shows that Polygonum multiflorum Thunb also has the functions of reducing blood fat, anti-fatty liver, anti-tumor, diuretic and antibacterial.

Small file of Polygonum multiflorum Thunb

In ancient times, Polygonum multiflorum Thunb was divided into male and female, and at night, the vines intersected, hence the name Polygonum multiflorum Thunb. "Doumen Fang" says: "If you take the root and get nine counts, you will be served with the fairy, hence the name of Jiuzhenteng." Caulis Polygoni Multiflori is mainly produced in Henan, Hunan, Hubei, Jiangsu, Zhejiang and other places. The medicinal part is the vine stem or leafed vine stem of Polygonum multiflorum Thunb. Polygonum multiflorum Thunb. belongs to Polygonaceae and is a perennial creeping herb, which grows on grass slopes, roadsides, crevices of hillside stones and bushes. Generally taken in summer and autumn, twigs and leaves are removed, cut into sections and dried. Modern research found that Polygonum multiflorum Thunb contains emodin, chrysophanol, emodin methyl ether, β-sitosterol and so on.

Efficacy indication

Efficacy: nourishing the heart and calming the nerves, expelling wind and dredging collaterals.

Indications1.Used for asthenia, insomnia, dreaminess, etc. caused by deficiency of yin and blood. 2. Used for blood deficiency, limb pain, rheumatism and arthralgia. 3. External washing is used for skin sores, rashes and itching.

Identification of authenticity

It is reported that in some areas, Polygonum multiflorum Thunb will be used as Polygonum multiflorum Thunb instead, but they have different effects and should be distinguished. Authentic Polygonum multiflorum Thunb, slender cylindrical stem, often twisted, hairless. Leaves alternate, long-stalked, glabrous. Stem section, stipules, sheaths, membranous stalks. The skin is reddish brown, the wood is yellowish, and the pith is white and loose. It tastes slightly bitter and astringent. Polygonum multiflorum Thunb. is a leafed vine belonging to Chenopodium of Ramaceae, with cylindrical stems and opposite leaves. Its cross section is white and powdery, and its pith is often hollow, bitter and sweet.

Pay attention to things.

Caulis Polygoni Multiflori can be decocted, washed or mashed for external use.