Educational information, not medical advice — ask your doctor or midwife.
Cuachalalate is the bark of a Mexican tree, Amphipterygium adstringens. People take it mainly for stomach trouble, such as gastritis (an inflamed stomach lining). It is also used on wounds and as a mouth rinse.
The bark is sold as chips for tea, as powder, in capsules and as a tincture. It tastes bitter and drying. In Mexico it is one of the best known folk bark remedies.
Here is the honest verdict. Most of the research is in test tubes and in animals. Human trials are very few and very small.
So the effects in people are not established. Long use in tradition is not proof that a remedy works. It is also not proof that it is safe.
Nobody has shown clearly how cuachalalate acts in the human stomach. What follows comes from laboratory and animal work.
In rats, bark extracts have reduced stomach damage caused by alcohol and by pain drugs. Researchers link this to triterpenes in the bark. Whether the same happens in people has not been shown.
In test tubes, extracts slow the growth of Helicobacter pylori, a germ tied to ulcers. That is a dish, not a stomach. No trial has shown that drinking the tea clears this germ.
In cell and animal studies the bark also appears to calm inflammation and to act on cholesterol. These are early findings. Treat them as leads, not as results you can count on.
You will meet cuachalalate in a few forms.
- Bark chips or strips, simmered to make a tea, which is the traditional form.
- Ground bark powder.
- Capsules, often blended with other herbs.
- Alcohol tinctures and drops.
- Creams, soaps and mouth rinses for skin and gum use.
Market studies in Mexico have found bark sold under this name that came from other trees. Buy from a seller who names the botanical source on the label.
Cuachalalate has a long record in central and southern Mexico. Nahuatl-speaking peoples used the bark before the Spanish arrived. Colonial-era texts list it for stomach pain and for sores.
Healers simmered the bark and gave the liquid for gastritis, ulcers and heavy periods. The same liquid was used to wash wounds and rinse sore gums. Bundles of bark are still sold in Mexican markets today.
This page records that history. It does not suggest you copy it.
Stop and see a doctor if your stomach pain lasts more than two weeks, or gets worse.
Get urgent care if you vomit blood, or pass black, tarry stools. These can be signs of a bleeding ulcer.
Also stop and seek help for yellow skin or eyes, dark urine, a spreading rash, or swelling of the lips or throat.
In Mexico the bark is sold openly in markets and as a registered herbal remedy. In the United States, the United Kingdom and the European Union it is sold as a food supplement. It is not approved anywhere to treat or prevent disease.
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.
One email with the summary. We'll also send a short weekly evidence update — unsubscribe any time.