Educational information, not medical advice — ask your doctor or midwife.
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Banggi is a herb used in Korean medicine. It is the dried stem and root of a woody vine, Sinomenium acutum. In English it is called orientvine.
Healers give it for sore, swollen joints. They also give it for puffy legs and feet. It is most often boiled into a tea with other herbs.
The record of use is long. The human trial record is thin. A long record of use is not the same as proof that it works, and we say so once here rather than in every section.
There is one more thing you must know. Some herbs sold under the name "fang ji" are a different plant that can destroy the kidneys. The safety notes below explain this.
Banggi holds a compound called sinomenine. In lab tests, sinomenine calms swelling. It also damps down the immune system, which is the body's defence system.
Older Korean texts use a different idea. They say banggi drains "damp" from the body and frees the joints. That is a way of speaking, not a measured fact.
No study has shown that the whole herb works this way in people. Treat it as a theory.
Banggi is sold as dried, sliced stem and root. Most people take it as a tea, boiled in water. A herbalist often blends it with other herbs.
You may also see it as a powder, a pill or a strong liquid extract.
In China, a purified drug made from sinomenine is sold for joint disease. That is a drug, not the raw herb. Do not treat the two as the same thing.
Check the label for the plant name Sinomenium acutum. The name "fang ji" on its own is not enough.
Banggi comes from the old herb books of East Asia. Korean doctors listed it in the Donguibogam, a medical text from 1613.
It was given for "damp" aches. That meant heavy, swollen, painful arms and legs. The same use carried on in Korean, Chinese and Japanese herb practice.
Some reactions to banggi need urgent care. Call your local emergency number or go to an emergency department straight away — do not wait to see whether it passes.
Stop banggi and get help fast if you get a rash, itching, or swelling of the face, lips or tongue. Call emergency services if breathing becomes hard.
See a doctor soon if you pass less urine than usual, your legs swell, or you feel very tired and washed out. These can be signs of kidney trouble.
Also see a doctor if joint pain is new, severe, or comes with a fever.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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