What is Jidabokuippo?

Jidabokuippo is a Japanese Kampo herb blend. People take it for bruises, swelling and pain after a knock, a fall or a sprain. It is also used after some bone breaks and after surgery.

The name means, more or less, "the one formula for bruises". The Latin label used in some lists is Trauma formula. It is a mix of seven plant parts, not one herb, no matter what a product label says.

Long use in Japan is not the same as proof that it works. Human trials are small and few, so we grade the proof as low. Two parts of the mix, licorice root and rhubarb root, carry real risks, so read the safety part below.

How does Jidabokuippo work?

No one has shown how it works in the body. Kampo teaching says it moves "stuck blood" and clears swelling after a blow. In plain words, it is meant to help the body clear a bruise faster.

Lab and animal work hints that some parts calm swelling. That work is not proof in people.

Two effects are not in doubt. Rhubarb root loosens the bowels. Licorice root can make the body hold salt and water, which raises blood pressure and drops potassium (a salt your heart and muscles need).

What forms does Jidabokuippo come in?

Most often you get a dry granule powder. You stir it into warm water and drink it. Some brands sell tablets or capsules instead.

In Japan it is a licensed drug, and a doctor can write a script for it. Outside Japan it is sold as a supplement. Quality varies, so check the label for how much licorice and rhubarb each dose holds.

Where it comes from:

The blend comes from Japan. A doctor named Kagawa Shuan wrote it down in the 1700s. It was built for falls, blows and sprains.

It has been a staple of Kampo care for more than 200 years. It is still widely used in Japan today, often in clinics that treat bones and joints.

What does Jidabokuippo help with?

• Bruising after a knock or fall: This is the main use in Kampo, and it has been for centuries. Japanese reports describe bruises fading faster, but these are small studies and case notes. We cannot point to a large, well run trial.
• Swelling after an injury: Kampo practice uses it for puffy, sore tissue after a blow. Some small Japanese hospital studies report less swelling. The studies are small and many were not blinded, so the result could be chance or hope.
• Pain and swelling after surgery: Japanese surgeons have tried it after breast, joint and jaw surgery to reduce bruising. Reports are mostly small and from single hospitals. Treat this as an unproven use.
• Rib fracture pain: This is the most studied use. Small Japanese trials report less pain and less need for painkillers in the first week or two. The trials are small, so the finding is promising but not settled.
• Sprains and soft tissue strains: Long used for twisted ankles and pulled muscles. We found no human trial for this use. It rests on Kampo practice alone.

Which foods are rich in Jidabokuippo?

1. Licorice sweets and licorice tea: they add to the licorice already in the blend and raise the risk of high blood pressure and low potassium
2. Cinnamon: a shared plant, but food amounts are not a concern
3. Clove: a shared plant, again fine in cooking amounts

Practical Tips:

The only food worth avoiding while you take this is licorice itself, in sweets or tea.

What are the side effects of Jidabokuippo?

• Loose stools or diarrhoea
• Belly cramps
• Nausea or poor appetite
• Skin rash or itching
• Swollen ankles and puffy face from holding water
• Higher blood pressure
• Low potassium (a salt your heart and muscles need), which can cause muscle weakness, cramps or a fluttering heartbeat
• Rare liver upset, seen as yellow skin or eyes, dark urine or deep tiredness

Good to know:

Loose stools are the most common effect, and they come from the rhubarb root. They often settle if the dose is cut.

The serious effects come from the licorice root. Holding water, high blood pressure and low potassium build up with higher doses and longer use. They are not common at short, normal doses, but they are well documented.

Stop taking it and get medical advice if you notice swelling, weakness or an odd heartbeat.

How much Jidabokuippo should you take?

• Recommended daily: A common adult amount in Japan is 7.5 g of granules a day, split into two or three doses. Some products use 6 g a day. There is no agreed amount outside Japan, and no set amount for children. Follow the label or your practitioner. Do not double up with another Kampo blend that also holds licorice.
• Best time of day: Kampo custom is to take it before meals or between meals, spread through the day. If it upsets your stomach, take it with food instead.
• With or without food: Usually on an empty stomach, with warm water. With food is fine if your stomach feels sore.
• Time to effect: If it helps, people usually notice within a few days. Bowel loosening from the rhubarb can start on the first day.
• How long to take it: It is meant for short use while an injury heals, often one to two weeks. Check in with a doctor if you are still taking it after two weeks. Long use raises the risk of low potassium (a salt your heart and muscles need) from the licorice.