What is Qing Hao Bie Jia Tang?

Qing Hao Bie Jia Tang is a Chinese herbal formula. Five herbs are boiled together into a tea. It is also called Sweet Wormwood and Soft-Shelled Turtle Shell Decoction.

In Chinese medicine it is used for a low fever that comes back in the evening or at night. The old texts tie it to heat left over at the end of a long illness. Night sweats and a dry mouth are part of the same picture.

Our library lists this as a single drug entry (TCM formula). It is not one plant but one named mix, used and sold as a unit.

Human trial proof is thin. Long use in one tradition is not the same as proof that a remedy works, and we say so here once rather than in every section. We grade the evidence as insufficient.

How does Qing Hao Bie Jia Tang work?

No one has shown clearly how this formula acts in the body. The old texts give their own picture in their own words.

In that picture, Bie Jia (turtle shell) reaches deep to draw hidden heat up. Qing Hao (sweet wormwood) then carries that heat out through the skin. The other three herbs are said to cool the blood and moisten dryness.

Lab and animal work shows that some of these plants can lower fever and slow germs in a dish. That work does not tell us what the whole tea does in a person. Treat the old language as a map of use, not as biology.

What forms does Qing Hao Bie Jia Tang come in?

The classic form is a decoction. You simmer the raw herbs in water and drink the strained liquid.

Many people now use granules. These are dried water extracts that you stir into hot water.

Pills, capsules and ready-made liquids are also sold. Strength varies a lot between brands, so read the label each time.

Some makers now leave the turtle shell out or swap it for a plant substitute. Check the label if you avoid animal products. Buy only from sellers who name the source of any turtle shell.

Where it comes from:

The formula comes from the Wen Bing Tiao Bian, a Chinese text of 1798 by Wu Ju-tong. That book belongs to the warm disease school, which dealt with fevers.

It has stayed in use for more than two hundred years. It is taught in Chinese medicine schools today and appears in standard formula books.

That gives it a solid place in one tradition. It does not give it trial proof.

What does Qing Hao Bie Jia Tang help with?

• Low fever that returns in the evening or at night: This is the main classic use, and it is where the formula sits in Chinese medicine texts. A practitioner would pick it when the fever rises at night and falls by morning. We found no published human trial that tests this use, so the support is tradition, not proof.
• Night sweats: Old texts list night sweats with a dry mouth as part of the same pattern. Herbalists use the formula for this, often after an illness. There is no trial evidence. Night sweats plus weight loss need a doctor first, as they can point to a serious illness.
• Fever with no clear cause, after tests: Some Chinese hospital reports describe this use alongside normal care. We could not find a well-run, clearly published trial. Never treat an unexplained fever on your own; get it checked first.
• Feeling hot and dry late in a long illness: Tradition sees this as heat sitting deep with fluids used up. The formula was built for that picture. Evidence here is traditional only.
• Hot flushes with a dry mouth: Some practitioners use it this way by pattern, not by diagnosis. No trial has tested it for hot flushes. Do not expect it to act like a menopause treatment.

Which foods are rich in Qing Hao Bie Jia Tang?

1. Sweet wormwood tea: made from the same plant as Qing Hao, drunk in parts of Asia, but far weaker than this formula
2. Soft-shelled turtle soup: a dish in parts of China that uses the same shell, eaten as food rather than as a remedy

Practical Tips:

This is a herb mix, not a nutrient. You cannot get a useful amount from normal food.

What are the side effects of Qing Hao Bie Jia Tang?

• Loose stools or diarrhoea
• Upset stomach or nausea
• Poor appetite or a bloated feeling
• Rash, itching or other allergy signs
• Easy bruising or a nosebleed, which is uncommon
• Liver strain, which is rare and shows as yellow skin or eyes, dark urine and deep tiredness

Good to know:

Most reported effects are mild and settle when you stop. Stomach upset is the most common one, because two of the herbs are cooling and heavy on digestion.

Bleeding and liver problems are the serious ones. They are not common, but they are the reason this page is not marked as routine. Stop the formula and get medical help if either shows up.

How much Qing Hao Bie Jia Tang should you take?

• Recommended daily: No trial has set a safe and useful dose. What follows is the classic text dose, used by practitioners. The raw herb mix is often Qing Hao 6 g, Bie Jia 15 g, Sheng Di Huang 12 g, Zhi Mu 6 g and Mu Dan Pi 9 g. That makes one day's decoction, drunk in two parts. For granules, pills or liquids, follow the label. Doses differ a lot by brand. A trained practitioner should set your dose and check it.
• Best time of day: Often split into two doses, one in the late afternoon and one in the evening. This lines up with when the fever is said to rise. Follow your practitioner or the label.
• With or without food: Take it between meals, on a fairly empty stomach. If it upsets your stomach, take it with a little food instead.
• Time to effect: Tradition expects a change within a few days. There is no trial data on this. If nothing changes in three days, see a doctor.
• How long to take it: Short courses only. Tradition uses it for a few days up to about two weeks. Stop and see a doctor if your fever is no better after three days. Do not keep taking it for weeks on your own.