What is Sanmotsuogonto?

Sanmotsuogonto is a Kampo herbal formula used in Japan. Its name means Three-Ingredient Scutellaria Decoction. It is a Ministry-approved Kampo formula, sold as Tsumura 121.

It is given for a hot, burning feeling in the hands and feet. Kampo doctors also use it for dry, itchy skin. It is best known for use in the weeks after childbirth.

Long use in a tradition is not proof that a remedy works. Good human trials of this formula are lacking. Treat the evidence as unsettled, and treat the safety notes below as firm.

How does Sanmotsuogonto work?

Kampo explains it in its own terms. The blend is said to clear heat and dryness from the blood, and to settle burning limbs. That is a traditional idea, not a lab finding.

In test tubes and in animals, baicalin from Ogon damps some inflammation signals. In animal work, matrine from Kujin appears to calm itch and pain nerves. Whether either of these happens in people at normal doses is not known.

Jio is used in Kampo to moisten dryness. No human trial has linked that use to a measured effect.

What forms does Sanmotsuogonto come in?

Most people take it as extract granules. These are fine grains that you stir into warm water. Tsumura 121 is the best known brand in Japan.

Some makers sell tablets or capsules of the same extract. A few Kampo doctors still boil the raw herbs as a tea. The strength of a home-made tea is hard to judge, so the granules are safer.

Where it comes from:

The recipe comes from old Chinese medical writing. It appears in the appendix of the Jingui Yaolue, quoted from a Tang dynasty source. It was given for burning heat in the limbs after childbirth.

Japanese doctors took it into Kampo practice from the Edo period on. It is now one of the formulas approved for use in Japan's health system.

What does Sanmotsuogonto help with?

• Burning heat in the hands and feet: This is the classic use, and the reason the formula exists. Kampo texts have named it for this pattern for centuries. We found no controlled human trial for it. The support is tradition and doctor report only.
• Hot, restless feelings after childbirth: The old source text ties the formula to the weeks after birth. Kampo doctors still use it this way. No trial has tested it against a dummy pill. If you are breastfeeding, do not use it without medical advice.
• Dry, itchy skin: Kampo treats dry itch as heat and dryness in the blood, which is this formula's target. In animal studies, matrine from Kujin appears to reduce scratching. That has not been confirmed in people.
• Atopic dermatitis (a long-term itchy skin rash): Some Japanese skin doctors add it to normal care for dry, hot, itchy rashes. The published reports are small and open, with no dummy pill group. It is not a substitute for the creams your doctor gives you.
• Trouble sleeping caused by hot, burning limbs: This is a knock-on use. If the burning eases, sleep may improve. There is no trial evidence that it works as a sleep aid, and it should not be used as one.

Which foods are rich in Sanmotsuogonto?

Warm water is the usual way to take the granules.

What are the side effects of Sanmotsuogonto?

• Nausea or stomach upset
• Loss of appetite
• Loose stools or diarrhoea
• Skin rash or itching
• Liver injury: yellow skin or eyes, dark urine, deep tiredness
• Interstitial pneumonia (inflammation deep in the lung): dry cough, breathlessness, fever
• Slow pulse, dizziness or faintness, mainly with too high a dose
• Drowsiness or shaky, jerky movements with a large overdose

Good to know:

Most people who react get mild stomach upset or loose stools. These often settle if the dose is lowered.

The serious effects are rare but real. Liver injury and lung inflammation are both known risks with Ogon-based Kampo formulas.

Heart and brain effects come mainly from taking too much Kujin. Stick to the dose and the time limit.

How much Sanmotsuogonto should you take?

• Recommended daily: In Japan, adults usually take 7.5 g of the extract granules a day. That is split into two or three doses. Your doctor or pharmacist sets the right amount for you. Body size, age and kidney or liver health all matter. Never take more than the label says. Kujin can slow the heart and the breathing if you take too much.
• Best time of day: Two or three times a day, spread evenly. Many people take it morning, midday and evening.
• With or without food: Kampo granules are usually taken before meals or between meals, with warm water. If it upsets your stomach, take it with food instead.
• Time to effect: Some people notice less burning or itch within one to two weeks. Others notice nothing at all. Judge it at four weeks, not sooner.
• How long to take it: Use it in short courses, not as a daily habit. Review how you are doing after two to four weeks. If you see no change in a month, stop and speak to your doctor. Longer use of Kujin has been linked to liver harm. If you and your doctor agree to keep going, ask for liver blood tests along the way.