Shinpito

What is Shinpito?

Shinpito is a Kampo herbal mix that contains mao, also called ephedra. Ephedra holds ephedrine, a strong stimulant. It can push blood pressure up fast and strain the heart.

Reported harms from ephedrine include stroke and chest pain. Others are fast or odd heart rhythms and psychosis (a loss of touch with reality).

The mix also holds kanzo, or licorice. Licorice can lower your potassium (a key body salt). Low potassium makes heart rhythm problems worse.

In Japan, Shinpito is a drug, not a health food. A doctor must order it, and a pharmacist hands it out. It is sold there as Tsumura 85.

In the United States, the FDA bans ephedra alkaloid supplements. Ephedrine is also a watched chemical there, on the DEA List I.

Kampo doctors used this mix for tight, wheezy breathing. Old use is not proof that a herb works or that it is safe. This page gives no dose and no way to make it.

How does Shinpito work?

Ephedrine acts much like your own stress hormones. It opens the airways and makes the heart beat harder and faster. This effect is well known in people, not just in lab work.

The same action drives the harm. Blood vessels tighten and blood pressure climbs. A heart that is already sick can slip into a fast or odd rhythm.

Ephedrine also acts on the brain. It can cause fear, shaking, sleep loss and, in rare cases, psychosis (a loss of touch with reality).

Licorice adds a second problem. It makes the body hold salt and water and lose potassium. This is well shown in people, and low potassium can trigger a dangerous heart rhythm.

The two risks stack. A racing heart plus low potassium is worse than either one alone.

Other herbs in the mix are milder. Most of the danger sits with mao and kanzo.

What forms does Shinpito come in?

In Japan, Shinpito comes as a dry extract granule in sealed packets. This is a prescription item, handed out by a pharmacy. It is numbered 85 in the Tsumura range.

Some makers also supply it as a tablet or fine powder for medical use.

Online sellers offer ephedra formulas as loose herb mixes or capsules. These sit outside any medical check. In the United States, ephedra alkaloid supplements are banned.

This page does not describe how any form is made or taken. Herb quality, alkaloid strength and packet size differ between products, and you cannot judge that at home.

Where it comes from:

Shinpito comes from Kampo, the Japanese branch of Chinese herbal medicine. Its name is often read as Mysterious, or Miraculous, Decoction. That name reflects old praise, not proof.

The recipe is recorded in Japanese formula books and is treated as a Japanese empirical mix. Its parts trace back to older Chinese ephedra formulas for wheeze and cough.

Kampo doctors gave it to people with tight breathing that seemed worse under stress or worry. Children with wheeze were a common group.

Japan later brought many Kampo mixes into the national health system. Shinpito is one of them, which is why a doctor prescribes it there.

Its long standing in Kampo says that doctors trusted it. It does not say that it is gentle.

What does Shinpito help with?

• Asthma with wheeze and a tight chest: Kampo doctors used this mix for wheeze with a tight, blocked chest. Ephedrine does open the airways in people, and that is well known. But modern inhalers do the same job with far less strain on the heart. Trials of Shinpito itself are small and mostly Japanese. Asthma can kill when it is treated badly. This is a job for a doctor, not for self-care.
• Long-standing cough and bronchitis: Tradition used the mix for a stubborn cough with phlegm and a tight chest. Human proof for Shinpito in this use is thin. A cough that lasts weeks needs a cause, not a cover-up. Infection, reflux, heart trouble and drug side effects all look alike at first.
• Breathing trouble linked to stress or worry: The formula was chosen when wheeze seemed to rise with mood and worry. Saiko and soyo in the mix were held to ease that state. This idea comes from Kampo pattern theory. It has not been tested well in people. A stimulant herb can also make worry and panic worse, not better.
• Wheeze in children: Kampo used this mix in children with mild wheeze, and a few small Japanese studies exist. The results are weak and hard to compare. Children are more open to stimulant harm. No child should take an ephedra formula outside close medical care.

What are the side effects of Shinpito?

• A racing, pounding or skipping heartbeat
• A sharp rise in blood pressure
• Chest pain or chest pressure
• Stroke, in serious cases
• Shaking, sweating and restlessness
• Sleep loss
• Fear, panic, or psychosis (a loss of touch with reality)
• Headache and dizziness
• Trouble passing urine, above all in older men
• Raised eye pressure, a risk in glaucoma (an eye disease)
• Low potassium from licorice, with weakness and cramps
• Swollen ankles and puffiness from licorice
• Nausea and stomach upset
• Rare lung harm (cough, fever, breathlessness) linked to Kampo mixes with saiko
• Rare liver harm, with yellow skin or eyes

Good to know:

Some of these are mild and some can kill. The heart and brain effects can start within hours of a first use.

Low potassium from licorice builds more slowly, over days or weeks. It can then set off a bad heart rhythm with little warning.

If your heart races or your chest hurts, treat it as an emergency.

Is Shinpito legal where you live?

In Japan, Shinpito is an approved prescription Kampo drug (Tsumura 85), given by a doctor and handed out by a pharmacist; lower-strength versions are sold over the counter there. In the United States, the FDA bans supplements with ephedra alkaloids, and ephedrine is a DEA List I regulated precursor, not a controlled substance. The European Union and Japan apply similar controls to ephedrine itself.

Options to discuss with a clinician

Speak to a doctor first. Wheeze and long cough have many causes, and some are dangerous.

For asthma, ask about inhalers. Reliever and preventer inhalers are proven in people and act on the lungs with far less strain on the heart.

For a cough that will not settle, ask for a cause to be found. Reflux, post-nasal drip, heart failure and blood pressure drugs are common culprits.

If stress makes your breathing worse, ask about breathing training and talking therapy. Both are low risk.

If you want a Kampo route, ask a Kampo-trained doctor about formulas without mao and without kanzo. That choice belongs with a clinician who knows your heart, your blood pressure and your other drugs.