Dan Shen Yin
Quick Facts
- What it is: A three-herb Chinese formula used for chest and upper belly pain.
- Main uses: Chest pain in Chinese medicine practice, Upper belly pain, Bloating with slow digestion
- Best for: Tradition-led care with a trained practitioner, Short trial courses under supervision
- Active ingredients: Salvianolic acid B, Danshensu, Tanshinone IIA, Santalol, Spice oils from Sha Ren
- Forms: Boiled tea from raw herbs, Granules, Pills and tablets, Capsules
- Time to effect: Days for digestion; two to four weeks for pain, if at all.
- Side effects: Mostly mild stomach upset; the main risk is easier bleeding.
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What is Dan Shen Yin?
Dan Shen Yin is a Chinese herb formula. It is a mix of three herbs, taken as a tea, pill or powder. People use it for pain in the chest and in the upper belly.
The three herbs are Dan Shen (red sage root), Tan Xiang (sandalwood) and Sha Ren (a spice close to cardamom). Because it is a multi-herb formula, drug interactions and pregnancy cautions matter a lot here. Both are set out below, and you should read them before you try it.
Here is the short verdict on the evidence. The formula has long, steady use in Chinese medicine, but we found no human trial of the full mix. Long use is not proof that a remedy works, and that point is not repeated in each section below.
How does Dan Shen Yin work?
No one has shown how Dan Shen Yin works in the body. That is the honest starting point.
In Chinese medicine, the formula is said to move blood and qi (the body's life energy) in the chest. Dan Shen is the main herb. Tan Xiang and Sha Ren are added to warm the middle of the body and ease the stomach.
Lab and animal work on Dan Shen alone shows it can widen blood vessels and slow blood clotting. Those results come from cells and animals, not from people taking this formula. Treat the idea as a theory, not a fact.
What forms does Dan Shen Yin come in?
You can find Dan Shen Yin in several forms.
The classic form is a decoction, a strong tea boiled from raw herbs. Many shops now sell it as granules that you stir into hot water. Others sell it as pills, tablets or capsules of dried extract.
Strength differs a lot between brands. Two products with the same name can hold very different amounts of herb. Look for a brand that lists the herb amount per dose and is tested for lead, arsenic and other heavy metals.
Where it comes from:
Dan Shen Yin comes from Chinese herbal medicine. It is credited to Chen Xiuyuan's Shi Fang Ge Kuo, a Qing dynasty text from the 1800s. Its name means 'Salvia Drink'.
Doctors used it for chest and upper belly pain that felt fixed and stabbing. In the old texts, that pattern was called blood stasis with stuck qi. The formula is still taught in Chinese medicine schools today.
Who should avoid Dan Shen Yin?
- Do not use if you are pregnant, or think you might be. This is a multi-herb formula, and Dan Shen is a blood-moving herb that is not considered safe in pregnancy.
- Do not use if you are breastfeeding, as we have no safety data for the baby.
- Do not use if you take warfarin or any other blood thinner (a drug that stops blood clots forming).
- Do not use if you take aspirin, clopidogrel or another antiplatelet drug (a drug that stops blood cells sticking together).
- Do not use if you take digoxin (a heart drug), because Dan Shen can upset the blood test used to check your dose.
- Do not use if you have a bleeding disorder (a problem that makes you bleed or bruise too easily), such as haemophilia.
- Do not use if you have surgery, a dental procedure or a biopsy planned in the next two weeks.
- Do not use if you have new chest pain, worse chest pain, or pain that spreads to your arm, neck or jaw. Get urgent medical help instead.
- Do not use if you have low blood pressure or often feel faint when you stand up.
- Do not use if you are allergic to sandalwood, sage or ginger-family spices such as cardamom.
- Do not use if you are giving it to a child, unless a doctor has said it is safe.
- Do not use if you are already taking another Chinese formula that holds Dan Shen, as the amounts add up.
When should you see a doctor?
Call emergency services now if you have crushing chest pain, pain spreading to your arm or jaw, sweating, sickness or trouble breathing. Those can be signs of a heart attack. Do not wait to see if a herb helps.
Stop taking it and see a doctor soon if you bruise easily, get nosebleeds, bleed from your gums, see blood in your stools or urine, or have periods much heavier than normal.
Also see a doctor if belly pain lasts more than two weeks, if you are losing weight without trying, if you vomit blood, or if you feel dizzy and faint. Tell any doctor, dentist or pharmacist that you take this formula, especially before surgery.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
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