Educational information, not medical advice — ask your doctor or midwife.
Di Gu Pi is the dried root bark of the goji plant (Lycium chinense or Lycium barbarum). In Chinese medicine it is given as a single herb or in formulas for low-grade fevers that come and go, night sweats, and a dry cough with a feeling of heat in the chest.
It is the root bark, not the red goji berry you eat as a snack. The two come from the same plant but are used for different purposes in traditional practice.
The honest verdict: Di Gu Pi has a long and well-documented record in Chinese medicine, but good human trials are scarce. Traditional standing is not the same as proof that something works, and that gap applies here.
Nobody has shown clearly how Di Gu Pi works in people. Most of what we know comes from test-tube and animal studies, which often do not carry over to humans.
In traditional terms, it is said to clear "deficiency heat" and "cool the blood" — the pattern a practitioner reads from afternoon fever, night sweats and a sensation of heat rising from the bones.
Animal work suggests the root bark may lower blood sugar, lower blood pressure and reduce fever. These findings are early and have not been confirmed in careful human studies.
Di Gu Pi is sold mainly as a raw dried herb for decoction (simmering in water to make a strong tea). Other forms include:
- Sliced dried root bark, sold loose by weight - Granules or powdered extract that dissolve in hot water - Capsules and tablets, usually as part of a multi-herb formula - Liquid tinctures, less common in Chinese practice
Di Gu Pi appears in the Shen Nong Ben Cao Jing, the foundational Chinese herbal text compiled around the first to second century CE. It has stayed in continuous use ever since.
It is a standard ingredient in classical formulas such as Qing Gu San, used for lingering low fevers. It is a staple of Chinese medicine specifically, rather than a herb shared across many traditions.
See a doctor if a fever lasts more than three days, or if you have night sweats along with weight loss, lumps in the neck or armpit, or a cough that will not clear. Get urgent help if you cough up blood, faint, or feel shaky, sweaty and confused, which can mean your blood sugar has dropped too low. If you take a blood thinner and notice unusual bruising, nosebleeds or bleeding gums, stop the herb and contact your doctor the same day.
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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