Scutellaria Decoction (Huang Qin Tang)
Huang qin is one of the few herbs that enter the so-called “pivot” of the body.

Detoxifying since 220 AD. Huang Qin Tang (Scutellaria Decoction) is a simple modification of the #1 formula in Shang Han Lun style Chinese herbalism. Huang Qin Tang is pronounced “wong chin tong“.

Alternative Names

  • Huang Qin Tang
  • Huang Chin Tang
  • Scute and Licorice Combination
  • 黃芩湯
  • Scutellaria Decoction
  • Huang-Qin-Tang (HQT)
  • PHY906, PHY 906

About this formula

Recently studied as a digestive aid called PHY906 (Huang Qin Tang) in those undergoing Western drug therapy.

Huang Qin Tang was traditionally used for gastrointestinal distress and detoxifying the intestines when resulting in burning crampy diarrhea with a strong odor.

The Yale University new site says: “The formula used in the experiment consists of four herbs, called PHY906, and is based on a herbal recipe called Huang Qin Tang, used historically to treat nausea, vomiting and diarrhea.”


Huang Qin 黃苓 baical skullcap root, Scutellaria baicalensis Georgi (skullcap), scutellaria, scute Radix Scutellariae Baicalensis [supports pregnancy]

  • Regulates the Shao Yang. What’s a Shao Yang? In biomedicine there are different organs or structures that can be infected. For instance, when you have the common cold, this is an upper respiratory tract infection. In both biomedicine and Chinese medicine, an infection such as this can spread to other locations.
  • One of these locations is called the Shao Yang which is not really an organ, more like a depth which is deeper than the skin, but not as deep as the bones. In fact, it is considered to be the “pivot” or hinge between the exterior of the body (skin, lungs, nose) and the interior of the body (stomach and intestines). This location doesn’t have an anatomical counterpart in biomedicine (some say the Shao Yang is the gallbladder, and in some contexts this is correct, just not here.) The key point about the Shao Yang is that if it is clogged up by disease or side effects of drug therapies (or drug addictions) it can undermine many digestive functions. This is its value in Huang Qin Tang as has been studied by researchers. Huang Qin (Rx. Scutellariae) regulates digestive and intestinal functions

Da Zao 大棗 jujube, Chinese date Jujubae Fructus, Ziziphus jujuba Mill

  • Press releases describing the use of Huang Qin Tang to regulate digestive functions describe this formula’s ingredients as having a “fruit from a buckthorn tree”. This seems to be a misprint or misstatement. Other news stories have been corrected to accurately include Da Zao Chinese date as the traditional ingredient in Huang Qin tang.
  • The good news is that this Chinese date is sweet and delicious. It is often used in formulas to stimulate digestive functions. Appetite and digestive functions are so important in Chinese medicine that we have a little mini-formula called the “three candies”. These three herbs can be added to many formulas to stimulate the Stomach functions. Two of these herbs (da zao date and gan cao licorice root) are in Huang Qin Tang already. The third of the three candies is included in the modifications for nausea (sheng jiang or ginger root).

Bai Shao 白芍 white peony root, peony Paeoniae Radix alba, Paeonia lactiflora Pall [supports pregnancy]

  • This herb, when teamed up with Zhi Gan Cao below helps relax abdominal cramps.

Zhi Gan Cao 炙甘草 licorice root, Glycyrrhiza uralensis Fisch (licorice), Radix Glycyrrhizae prep. [caution]

  • This herb is often added to formulas to harmonize the ingredients and soften side effects. This is a very sweet-tasting herb. Its name actually translates to “sweet herb”. This herb has a calming and softening quality that protects against side-effects due to the more harsh ingredients in this formula (specifically, huang qin). However in this formula, it also teams up with bai shao (Rx. Paeoniae) to relax abdominal pain and cramps. This herb’s detoxification functions have made gan cao the darling of researchers who study herbal solutions to some of those nasty flus that have been in the news in recent years.
Recommended for these body types:
Slightly Hearty
Slightly Hearty
Slightly Delicate
Slightly Delicate

Recommended for these thermal natures:


Eagle Herbs is now supplying a 2 gram “little spoon”. (Please wash and dry before using.)

    • An “average dose” is 10 grams per day of the granules. This means 5 “little spoons” or 20 capsules each day. Each capsule is 1/2 gram. 
    • A Big Dosage for Short-lived but intense issues: 3 little spoons (12 capsules) twice a day.
    • A Smaller Dosage for Lingering low-grade concerns: 2 little spoons (8 capsules) twice a day. 
    • If you are very sensitive to medicines: start out low (1/2 little spoon or 2 capsules) once per day, and raise the dosage each day.

    We find that people find the right dosage for themselves. We don’t know your body weight, your sensitivity etc… So take what feels good for you and you get the results you are looking for. Many people get great results with taking less. 

    Your order will last approximately this long:

    • 50 grams powder (100 capsules) : 4 to 14 days.
    • 100 grams powder (200 capsules) : 8 to 28 days
Shipping Rate: A

Availability status: in stock

Order Scutellaria Decoction

8 thoughts on “Scutellaria Decoction (Huang Qin Tang)”

  1. Note: news reports on the benefits of this formula caution consumers that “many herbal products claiming to be Huang Qin Tang (Scutellaria Decoction) may contain harmful or ineffective substitutes and should be avoided.”

    Eagle Herbs agrees with this caution, but we also remind consumers that there are legitimate herbal formulas available as well. All of the ingredients in this formula come from the Tianjiang Pharmaceutical Company. This company supplies about 75% of hospitals in China with their herb extract powders. The products that come from this company are far less likely to be adulterated with drugs or contaminated with heavy metals. Tianjiang is about as legitimate a pharmaceutical concern as you’ll find in China.

    The problem of adulterants and heavy metal contaminants are more often found in the proprietary formulas made by companies that directly target consumers with the Chinese herbal equivalent of over-the-counter medicines. The extracts used at Eagle Herbs from Tianjiang are not sold directly to consumers like those that have been found to be tainted.

    More About Herb Safety

  2. Just made up a batch, wanted to check out its taste. Not bad, very doable if you want to avoid the added cost of encapsulation.

    Kind of a sweet toasted flavor with a slightly bitter aftertaste. The bitterness doesn’t last in the mouth, though. Not a bad taste by Chinese medicine standards.

  3. Hello, I am abt. to recommend this to a person who will be administered a 5 times the normal chemo dose soon. So far, Astragalus has worked well. I wonder how this (PHY906) will counteract the chemo side effects, and whether this is safe. Patient has T-cell lymphoma (Non-H), almost in remission, abt. to get an autologous transplant. Also do not know if we shd tell the doc about this. Thanks.

  4. Hi Vigay, this formula is being used for the gastrointestinal side effects of chemotherapy.

    Those who have purchased this formula from this site have a very high incidence of reorders, which tells me that people like the effects of this formula. This is a very safe formula, time tested over the past 1800 years. However as far as the quality of the Eagle Herbs in particular, you can read more about what we have here at EagleHerbs by reading “About Herb-Safety

    Always share with your doctors all the dietary supplements you are taking, though it may be wise to refer to it as PHY906 so they can better research it. I’m sure they’ll be okay with it.


  5. Can the huang qin tang powder be mixed with tomato juice? Or maybe herbal tea? If so, does it matter if the liguid is hot or cold?

  6. Hi Jill, this powder can be put into anything you like, from milkshakes to martinis. Naturally we’ll want to make healthy choices consistent with the needs of the patient.

    This formula does have a taste which one may or may not like when added to tomato juice. I think that putting it into a light clear tea would taste best, but therapeutically, any of these options are fine.

    Hot or cold doesn’t matter either. Some formulas favor one or the other, but I think that Huang Qin Tang is fine served hot or cold.

  7. Hi, i need to know the rate for shipmento to Mexico City, South America, could you please let me know? Thanks

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