Educational information, not medical advice — ask your doctor or midwife.
Chomeito is a name from Kampo, the Japanese form of herbal medicine. It appears in Japan's list of Kampo formulas covered by state health insurance. Our own catalogue holds no verified entry for it.
We cannot confirm which herbs Chomeito contains. Most Kampo formulas mix five to twelve dried herbs in set amounts. Without that list, no one can judge how this one acts, or how safe it is.
Here is the honest verdict. We found no human trials of Chomeito. Being named in a long tradition is not proof that a remedy works, and not proof that it is safe.
No one has shown how Chomeito works in the body.
A mechanism needs a known ingredient list. We do not have one for this name. So any claim about how it acts is guesswork.
Kampo does not start from disease names. It sorts people into patterns, such as heat, cold, damp, or weak flow of qi (life energy). A formula is then matched to the pattern.
Single Kampo herbs have been studied in labs. In test tubes and in animals, some appear to calm swelling or relax gut muscle. Whether that happens in a person taking this formula is not known.
Treat any mechanism story you read about Chomeito as unproven.
In Japan, Kampo medicines are sold mainly as dried extract granules in single-dose sachets.
Other forms used in the tradition include:
Tablets and capsules.
Fine powders stirred into hot water.
Raw dried herb packs, boiled at home into a tea.
We cannot confirm that Chomeito is made in any form today. It did not appear in our live product catalogue as of 17 October 2026. A product sold online under this name may not match the formulary entry at all.
The name sits inside Japan's modern Kampo records rather than in a famous classic.
Kampo grew from Chinese herbal texts carried to Japan over many centuries. Japanese doctors reshaped it from the 1500s onward. They favoured simple formulas and careful belly examination.
From the 1960s and 1970s, Japan's health ministry (MHLW) allowed many Kampo extract formulas to be prescribed under state insurance. Chomeito appears in that administrative record.
We could not trace the formula to a named classical source, or to a written account of how doctors used it. That gap is why this page stays short.
Stop the product and ring your doctor if you notice any of these:
A puffy face, swollen ankles, or weight gain over a few days.
Muscle cramps, weakness, or a thumping or uneven heartbeat.
A new rash, itching or mouth sores.
Get same-day medical care for these signs:
Yellow eyes or skin, dark urine, or pain under your right ribs.
A new dry cough, fever and shortness of breath.
Fainting, chest pain, or a heartbeat that will not settle.
Tell the clinician the exact product name and bring the pack.
In Japan, Kampo extract medicines are regulated drugs, and many are prescription-only and covered by state insurance. Chomeito appears in that ministry record. Outside Japan it is not an approved medicine; the US FDA and UK MHRA have not approved it, and any product sold would be an unlicensed supplement.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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